casting numbers/vin #

grumpyvette

Administrator
Staff member
vinnum1.jpg

youll normally find engine ID numbers hear on the front pass side of the block
endinedetail1.jpg

http://www.mortec.com/castnum.htm

http://www.nastyz28.com/chevy-engine-code-stampings.php

http://www.mortec.com/

http://www.camaros.org/drivetrain.shtml#PadStamps

http://jwtautomotive.blogspot.com/p/intake-manifold-casting-numbers.html

vinnum2.jpg

vinnum3.jpg

vinnum4.jpg

http://www.thecamaro.com/Decoding/Chevy ... umbers.php
vinnum5.jpg

vinnum6.jpg

vinnum7.jpg

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yes taking the time to read thru the links is well worth the time and effort, as they contain the vast majority of related info

http://www.thedirtforum.com/castings.htm

http://auto.howstuffworks.com/1995-corvette1.htm

http://www.nastyz28.com/gm-chevy-codes/ ... fix-12.php

viewtopic.php?f=61&t=7074&p=23523&hilit=+vehicle+number#p23523

http://www.chevellestuff.com/qd/block_c ... y_year.htm

http://www.fastnuf.com/bbccastingnumbers.html

http://chevellestuff.net/qd/intake_casting_by_year.htm

http://www.mre-books.com/chevy/engines/parts_interchange/intake.html

http://www.chevy-camaro.com/chevy-camaro-engine-codes.php

http://outintheshop.com/faq/casting/castings2.html

http://www.minuit10.net/EngineCode/chev ... erHead.htm

http://www.chevymania.com/partsid/

http://www.jimsperformance.com/blocks.html

http://www.mortec.com/location.htm

http://www.chevy-camaro.com/chevy-camar ... sp?group=6

http://www.yearone.com/updatedsinglepag ... info1.html

http://www.auto-ware.com/techref/castnum.htm

http://www.geocities.com/meanracing/Blo ... ation.html

castclock.jpg


Casting Clock and Date

The casting clock on some engine intake and exhaust manifolds from the Saginaw, Michigan, plant feature a clock. It features 10 dots for a 10-hour shift. One arrow points to the beginning of the 10-hour shift and a second arrow points to the hour the workers cast the engine. A casting date is on a pad in front of the bell housing on the driver's side of small-block engines and on the right side of the engine above the oil pan on big-blocks. It contains a single letter followed by three digits. For example, an "A" denotes the month of January followed by "05" for the day and "6" for 1976.
 
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Re: casting numbers

http://www.yearone.com/updatedsinglepag ... info2.html

http://www.aacncclub.com/

http://www.castheads.com/disguise_work.php

in the old days we used to use a bit of BONDO and some artistic use of a screw driver and putty knife to sculpt the desired casting marks then carefully block sand and paint the results to disguise aftermarket heads

http://garage.grumpysperformance.com/index.php?threads/vin-casting-info.10474/#post-44012

http://garage.grumpysperformance.com/index.php?threads/casting-numbers-vin.93/#post-9024

http://www.nastyz28.com/sbcmenu.php

http://www.chuckschevytruckpages.com/casting.html

http://www.holisticpage.com/camaro/parts/head.htm

http://www.mortec.com/castnum.htm

http://www.fastnuf.com/bbccastingnumbers.html

http://www.nastyz28.com/bbcmenu.php

http://www.nastyz28.com/sbchevy/sblock.php

http://www.geocities.com/meanracing/Blo ... ation.html

http://www.vehicleidentificationnumber.com/


headguide.gif



Key Cast Marks Cast Nos. Description
A Rectangle 460 ‘55 & up 265/283 low comp (8:1) 1.72/1.50 valves
B Narrow triangle over rectangle 520, 896 ‘58 & up 283 PowerPak/’57-’60 Fuel Inj.,9.25:1 CR, 1.72/1.50 valves, 59cc chamber; could be good replacement on late 305 but no accessory bosses.
C Vertical bar over rectangle 997 ‘57 Corvette 270HP, 9.5:1 CR, chamber similar to PowerPak but with sharp corners in plug shroud area
D 2 vert bars over rect 997 ‘56 Corvette 2X4 bbl, 283; ‘58 pass car FI; chamber same as ‘57 270HP Corvette
E, F Large “camel humps” 291, 461, 461X, 462 Original hi-perf or “fuelie” heads; chamber sizes are 62-64cc; both 1.94/1.50 & 2.02/1.60 valve versions available; 291 on 327’s thr ‘68; 291 have temp sender hole; 462 don't
G Left-facing right triangle 041 ‘69-’70 350/300HP, accessory bolt holes, most have 1.94/1.50 valves
H Small “camel humps” 186, 492 Later hi-perf or “fuelie” heads, some 186 (‘69 & later) & all 492 have accessory bolt holes; 1.94/1.50 or 2.02/1.60 valves; 64cc chambers; ‘70 LT1/Z28 use 492; avail as PN3987376
I Large triangle over rectangle (“crown”) 882 Large chamber (76cc), hardened exhaust valve seats, compromised intake port(‘71-’76 350/400cid), best of lightweight heads
J NONE 113 ‘86-’90 Corvette/ present 350-HO aluminum, no exhaust heat, 58cc chamber, 1.94/1.50 valves, centerbolt valve covers; good street head, ‘88-on have raised D ex port, 3/8 screw-in studs
K 3 right-facing “stairs” (“bench” on intake runner) 487 ‘71-’76 76cc, best large-chamber head; 1.94/1.50 & 2.02/1.60 valves available; latter machined for screw-in studs & guideplates
L Right-facing “bench” 993 Common big-chamber head, not a lightweight casting; sim to 487; may have steam holes
M One triangle 882 Alternative marking for 882; see I, above
N 2 triangles 624 Late-model lightweight casting version of 882
O “Saddle” and vertical bar 416 Late-model 305, conventional valve covers, intake port not restricted; lightweight; 57cc chamb
P Double (Captain’s) bars 193 Mid-’80’s style centerbolt cover with restrictive vane cast in intake port (hi-swirl); not recommended for high-performance applications
gmhead1.gif

http://www.fastnuf.com/Headguide.html
SMALL CHAMBER PRODUCTION "ON CAR" CYLINDER HEADS -By Racerguy..I just borrowed the page from him..

"462" – Could be 3890462, 3891462, 3990462. The 462 is one of the best flowing production SBC heads. They were used between 1962-1968 on various HP versions of 302, 327, or 350 engines. They could have come with either 1.94/1.50" or 2.02/1.60" valves, had 64CC combustion chambers, DO NOT have accessory holes, intake port volume should be 161CC's, exhaust port volume should be 65CC's. These heads have double hump casting marks.

"461" – Could be 3782461, or 3782461X. These were an excellent performance head. The regular 461 casting was used between 1964-1966 and could be found on 327 engines. They had 2.02/1.60" valves, a 64CC combustion chamber, DO NOT have accessory holes, intake port volume of 161CC's, exhaust 62CC's. These heads have double hump casting marks. The "X" castings had the same port configuration, but had larger port volumes, they DO NOT have accessory holes. The intake port on the "X" casting was 172CC's, and the exhaust port was 62CC's, valve sizing was 1.94/1.50". The "X" heads had double hump casting marks as well.

"291" – Could be 3912291, or 3917291. This is another good performance casting. They were found on 1967-1968 302, 327, or 350 engines. They could have either 1.94/1.50" or 2.02/1.60" valves, 64CC combustion chambers, DO NOT have accessory holes, intake port volume should be 161CC's, exhaust port volume should be 65CC's. These heads have double hump casting marks.

"492" – 3991492. Another good performance head. They were found on 1970 LT-1 engines. They had 2.02/1.60" valves, 64CC combustion chambers, DO have accessory holes, intake port volume should be 161CC's, exhaust port volume should be 62CC's. These heads have double hump casting marks. This particular casting head was also available as an "over the counter" head from GM in straight or angle plug configurations.

"186" – 3927186. Another good performance head. They were found on 1969-1970 302 and 350 engines. They had 2.02/1.60" valves, 64CC combustion chambers, DO have accessory holes, intake port volume should be 161CC's, exhaust port volume should be 65CC's. These heads have double hump casting marks.

"292" – 3917292, or 340292. Both are good performance heads. The 3917292 was found on 1968 327 and 350 engines, had 1.94/1.50" valves, 64CC combustion chambers, straight plug configuration, not sure on the accessory holes, and I do not have any port volume data on these heads. These heads have double hump casting marks. The 340292 was available from GM "over the counter". This version had angle plug configuration, 2.02/1.60" valves, 64CC combustion chambers. These were known as the "Turbo" heads.

"041" – 3947041, also 3947041X. A good performance head. They were found on 1969-1970 302 and 350 engines. They had either 1.94/1.50" or 2.02/1.60" valves, 64CC combustion chambers, DO have accessory holes, I don't have port volume data for the regular 041, the 041X intake port should be 165CC's, the 041X exhaust port should be 65CC's. These heads have a single somewhat triangular shaped casting mark (slope on the upper left).

"040" – 3947040. A good performance head (I have read). Supposedly these heads came on 1968 327 truck engines. They had 1.94/1.50" valves, 64CC combustion chambers, DO NOT have accessory holes. I do not have any port volume data for these castings. These heads also had a single triangular shaped casting mark (slope on the upper left).

"187" – 3927187. Another good performance head (I think). They were found on 1969-1970 350 engines. I believe they had 1.94/1.50" valves, 64CC combustion chambers, DO have accessory holes. I do not have any data on port volumes for this casting. These heads have double hump casting marks.

"414" – 3973414. A good performance head. They were found on 1970 350 LT-1 engines. They had 2.02/1.60" valves, 64CC combustion chambers, DO have accessory holes. I do not have any port volume data for this casting. These heads have double hump casting marks.


LARGE CHAMBER PRODUCTION "ON CAR" HEADS

"487" – 3973487, OR 3973487X. The regular casting was found on the 1971-1972 350 LT-1 engines, had 1.94/1.50" valves, 76CC combustion chambers, DO have accessory holes, intake port volume should be 161CC's, exhaust port volume should be 65CC's. The 487X had 2.02/1.60" valves.

"441" – 3932441. This head was found on the 1969-1970 350 engines (255hp 350), it was a decent flowing large chamber head. It had 1.94/1.50" valves, 76CC combustion chambers, DO have accessory holes, intake port volume should be 161CC's, exhaust port volume should be 61CC's. Not to be confused with 3923441, which was a 1.72/1.50" valve, 327 truck head.

"624" – 462624, 426624, or 458624. The 458624 was a truck head, with 1.72/1.50 valves – non performance. The other castings were used mid 70's and up on 350 engines, they came with 1.94/1.50" or 2.02/1.60" valves, had 76CC combustion chambers, DO have accessory holes, intake port volume is 161CC's, exhaust port volume is 62CC's. These heads are made of thinner castings and are prone to cracking.

"882" – 333882. These heads were found on early-late 70's 350 and 400 engines. They had 76CC combustion chambers, 1.94/13.50" valves, DO have accessory holes, intake port volume is 160CC's, exhaust port volume is 60CC's. These heads are made of thinner castings and are prone to cracking as well. The exhaust port on these heads is rather weak in my humble opinion, and is not considered to be a good performance head. I have read some flow numbers on the internet regarding the 882's, and I have a hard time believing some of the flow numbers people are posting on these particular castings. I did extensive flow testing on several of these particular castings, and was not very impressed with their flow characteristics. The 441 or 487 are a much better large chamber head (in my humble opinion). The 882 intake port is very close to that of the 624, the exhaust side is where the 882 is weaker.


OVER THE COUNTER GM IRON HEADS

"492" – See listing above.

"3973370" – A good over the counter head. They had 64CC combustion chambers, supposedly straight or angle plug configuration. Used a set of these on all 3 of my 383 strokers, they originally came with 1.94/1.50" valves. We did some major port massaging and installed 2.02/1.60" valves, they responded very well to the modifications and worked very well. The combustion chambers were 64CC's. These were a decent iron head, with a lot of potential for performance.

"3965742" – Another over the counter GM iron head. I have no data on these particular castings, other than they were angle plug configuration.


decode3.jpg




As posted These are GM production Heads, NOT aftermarket.
 
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Re: casting numbers

http://www.decodethis.com/Default.aspx? ... H6GX125849
check VIN NUMBERS
VIN Number Decoding

The Vehicle Identification Number (VIN) decodes as follows for the C4 Corvette:

(The last five positions (shown below in yellow) show the car's position in the build sequence for the model year).

1 G 1 YY 3 1 8 9 K 5 1 0 0 0 0 1

| | | | | | | | | | |_____ Plant Sequential Build Number

| | | | | | | | | |___ Factory Code (5 - Bowling Green, Ky)

| | | | | | | | |___ Model Year (See chart below)

| | | | | | | |__ Check Digit

| | | | | | |__ Engine Code (8 = L83, L98, P = LT1, 5=LT4, J=LT5)

| | | | | |__ Seat Belt System (1 = Manual Belts)

| | | | |__ Body Type (2 = Hatchback, 3 = Convertible)

| | | |___ Carline and Series (YY = Std Corvette, YZ = ZR1)

| | |___ Division (1 = Chevrolet)

| |___ Manufacturer (G = General Motors)

|__ Country of Origin ( 1 = USA)

Model Year Chart
Designator Model Year
E 1984
F 1985
G 1986
H 1987
J 1988
K 1989
L 1990
M 1991
N 1992
P 1993
R 1994
S 1995
T 1996


Chevrolet Head Casting Number Reference
Small Blocks
330545 350, 73, Corvette, 76cc, 2.02-1.6 valves
333881 350, 74-75, 76cc, 2.02-1.6 valves
333882 350-400, 74-80, 76cc, 160/60cc ports
340292 "Turbo" Over Counter Angle Plug, 64cc, 2.02-1.6 valves
354434 262-267-305, 75-79, 163/57cc ports LW casting
358741 305, 76-79
376450 262-305-350, 84-81, 168/60cc ports, 7 bolt ex.
376455 350, 77-85
458642 350-400, 67-70,
462624 350-400, 75-86, 161/62cc ports, 7 bolt ex.
468642 350-400, 76-up, small sparkplugs
471513 267,350, 79
517513 267,350, 79
3030817 400, 74
3636839 265, 55
3703523 265 Corvette, 55
3703524 265,55
3713358 265, 55-56
3713569 265, 55-56
3720991 265, 56-57
3731262 265, 56, 2x4 carb, Corvette
3725306 265, 56-57
3731539 57 Corvette FI
3731544 283, 57-61
3731548 283, 57-62
3731554 283, 57-61
3731556 283, 57 truck
3731762 265, 2x4 carbs, 56 Corvette
3737739 283, 57-62, Corvette, FI
3737775 283, 327, 62-67
3740997 283, 57
3743056 283, 58
3743096 327, 62-67 GMC truck
3747363 283, 57-61
3747460 283, 327, 59-67
3748720 283, 57-58,
3748770 283, 1x4 , 2x4 carbs, FI Vette, X58, stagger VC bolts
3748772 283, 58-61
3755537 283, 57-62
3755539 283, 58-62, stagger VC bolts
3755549 283, 57-62
3755550 283 Corvette, 59, stagger VC bolts
3755585 327 GMC truck, 62-67
3756519 283, 57-62
3760116 283, 60-64
3767460 283,327,60-64
3767462 327, 62-67, 161/65cc ports
3767465 283, 59-61
3767754 283 Power Pack, 59-61
3767792 283, 60-64
3770126 327, 69
3774682 283, 327, 60-64
3774684 327, Pass, Truck, 62-64
3774692 283, 60-61 Corvette
3774692 283, 58-64 Pass, Power Pack
3782461 327, 64-66 Double humpers or Camel hump 161/62cc port
3782461X 60-63, Larger intake runners, 172/64cc port
3782870 327, 62-37
3789817 327, 62-67
3789935 283, 57-62
3790721 283, 64-67
3792563 327, 65-67
3795896 283 Power Pack,63-65
3795896 327, 250HP Corvette, 62-64, 140/60cc ports
3798996 327, 63-67
3814480 283, 327, 60-67
3814482 327, 350, 62-67, 75cc, Lo compression head
3817680 283, 327, 63-67
3817681 327, 350, 62-67
3817682 283, 61-62
3836839 265, 55
3836842 283,327, 57-67
3837064 265, 283, 56-62
3837065 265 truck, 55-56
3837739 283, 57
3848720 283, 57-58
3849852 283, 57-67
3849935 283, 65-67
3852174 327, 62-64
3854520 283, 327, 62-67, 140/60cc ports
3870064 265, 283, 56-62
3870065 265 Truck, 55-56
3876775 283, 327 210 HP Camaro, acc. bolt holes on one end only
3884520 283, 327, 60cc, some made in canada
3890462 302, 327, 350, camel hump, 161-165cc intake port
3901068 350,285HP Crate motor, 64cc, 72ºintake bolt angle
3911032 307, 327, 68, W/O acces. bolt holes
3912264 283, 58-62
3912265 283, 63-64
3912311 327, 67
3912313 327, 65-67
3917290 307, 327, 67-68, 142/59cc ports
3917291 302, 327, 350, camel hump, 161/65cc ports
3917292 327-350 Corvette, camel hump, 68
3917293 307, 327, 75cc, 144/58cc ports
3927185 307, 327, 69cc, 69-70
3927186 302-350, camel hump, 63cc chambers, 161/65cc ports
3927187 350, camel hump, 64cc, 69-70
3927188 307, 74cc
3928455 302, 327, 68
3928494 327, 350, 68
3928495 327, 68
3931633 307, 68-72
3931635 250, 68-76
3931637 327, 68-69
3931638 327 truck, 68
3932441 350, 76cc, 161-165cc intake port
3932441X 350, 80cc, 1.94-1.5 valves, 161/65cc port
3932441X 400, 80cc, 1.94-1.6 valves, 161/65cc intake port
3932454 307, 69
3946812 350, 69
3946813 350, 69-70, 138/72cc ports
3747041 302, 350, 64cc
3951598 400, 70, 76cc
3964286 350
3970126 327, 350, 67-70
3973414 350, 70, LT1, 64cc, camel hump
3973487 350, 71-76,
3973487 350, LT1, 75cc, 161-165cc intake port
3973487X 350, 75cc, larger intake port
3973493 400, 71, 76cc
3986316 350 Corvette, 71, 76cc
3986336X 350, 76cc
3986388 307, 350, 68-76
3986339 307, 350, 71, 75cc
3986339X 307, 350, 75cc
3991492 350 LT1, 70, 64cc, straight plug, camel hump
3991492 Over counter, strt or angle plug, 64cc, 157/62cc ports
3998916 350 LT1, 76cc, screw in studs, big valves?
3998920 350, 72-73
3998991 307, 350, 75cc, 72-73, 73 had hard seats
3998993 307, 350, 76cc, 72-73, 15-164/64cc ports, 73 had hard seats
3998993 350 Crate motor, current, Hecho En Mexico, 159/64cc ports
3998997 350, 400, 76cc, 72-73, hard seats in 73
3998997 305, 350, 161-165cc intake port, hard seats
4079261 350, 75.
10033867 Pontiac Alm. Race head, angle plug, 62cc, 196cc intake port, 23º, 2.10-1.625 valve
10045434 Pontiac Alm. Race head, angle plug, 55cc, raised runner, 15º roll over
10051101 Bowtie, Alm, angle plug, 55cc, raised runner, 196cc intake port
10088113 350, 88-up, Corvette, Alm., angle plug, 58cc, .100 raised D-port ex. 1.94-1.5 valve, 19 lbs.
10106178 350, 90, LT5, ZR1, DOHC, 32 Valve, Pass. Side
10106179 350, 90, LT5, ZR1, DOHC, 32 Valve, Driver Side
10110810 350 Gen.I, 93-up
10128374 350 GenII, LT1, 53cc, angle plug, Corvette, Alm., reverse flow cooling, 168-175 cc intake port
10134352 Bowtie, Lo port, alm. 18º, angle plug, 45cc, 223cc intake port
10134363 Bowtie, Hi port, alm, 18º, angle plug, 45cc, 210cc intake port
10134363 Bowtie, Hi port, alm., 18º, angle plug, 60cc, 215cc intake port,
10134363 Bowtie, Hi port, alm., 18º, angle plug, 50cc, 250cc intake port, CNC machined, 2.15-1.625 valves
10134363 Bowtie, Hi port, alm., 18º, angle plug, 65cc, 250cc intake port, CNC machined, 2.15-1.625 valves
10134363 Bowtie, Hi port, alm., 15º, angle plug, 36cc, 223cc intake port
10174389 350, LT5, ZRI, DOHC, 32 Valve, 91-95, Driver side
10174390 350, LT5, ZRI, DOHC, 32 Valve, 91-95, Pass. side
10185040 Symmetrical port, splayed valve, alm, 45cc, 263cc intake port, 1st design
10185040 Symmetrical port, splayed valve, alm, 45cc, 263cc intake port, 2nd. design
10205245 350, Gen.II, LT1, alm., 93, reverse flow cooling, 168-175 intake ports
10207643 350, Gen II, LT1, alm., 94-96, reverse flow cooling
10225121 350, LT1, ZR1, DOHC, 32 Valve, driver side, 94-95
10225122 350, LT1, ZR1, DOHC, 32 Valve, pass. side, 94-95
10239902 350, 96-up, GenII, LT4, alm., reverse flow cooling
10239906 350, Vortec 5700, L-31, 64cc heart shape chmber, 1.94-1.5, 170cc intake port
14010201 305, 84
14011034 Bowtie, Phase 2, iron, angle plug, 64cc, 2.02-1.6, 184cc .080 taller intake port
14011039 350 HP Replacement Alm.
14011049 Bowtie, Phase 6, alm., angle plug, 55cc, 2.02-1.6 or 2.1-1.65, 180cc intake port
14011083 350-300HP, Crate Motor, 64cc, 90º manifold bolt, hard seats
14011083 350, 87-up, 64cc, center bolt VC, 72º manifold bolt
14014415 267, 305, 80-85
14014416 305 HO, 80-85, 58cc, 1.84-1.5, 165/59cc ports, 7 bolt ex.
14022601 267, 305 HO, 80-85, 58cc, 1.84-1.5, 7 bolt ex.
14022801 305, 80-85
14071114 350, 80-85
14079261 350, 86
14096217 350 285HP, Crate motor, 1.94-1.5, 72º intake bolts, 64cc, center bolt VC
14101081 305, 87-88 Camaro, center bolt VC
14101083 350 285HP, or 300HP, Crate Motor, 1.94-1.5, 72º intake bolts
14101128 350, Corvette, 86-87, alm., angle plug, 58cc
14102187 305HO, 87-91, 1.85-1.5, 58cc, 7 bolt ex.
14102191 305, 350, 87 up center bolt VC
14102193 305, 350, 87-up, 7 bolt ex.
24502559 Bowtie, SB2, alm., mirror port,
33417369 350, Gen.I, Crate motor, Hecho En Mexico, 7 bolt ex, 76cc, 1.94-1.5, flange VC holes, heavy castings

World Products Cast Iron Heads ( by part numbers )
4351 67cc, 162cc intake port
4350 76cc, 162cc intake port
4205 58cc, 162cc intake port, 305 torquer
4256 67cc, 172cc intake port, torquer
4257 76cc, 172cc intake port, torquer

Trick Flow Twisted Wedge Alm ( by part number )
31400001 64cc, 2.02-1.6, screw in studs, guide plates,185cc intake ports, candid valve angles
31400002 same 01, except with 72º intake bolts for 87-up
31400003 same 01, except with center valve cover bolt, 86- up
31400005 same 01, except 1.440 valve springs
31400006 same 01, except, with 72º intake bolts, old style valve covers

Edelbrock Alm. Heads
6061 Performer RPM Bare head, angle plug, 70cc
6063 Performer RPM Bare head, straight plugs, 70cc
6071 Performer RPM Same as 6061 exc. complete
6073 Performer RPM 70cc, 170cc intake port, straight plug, complete
6075 Performer 65-up, 70cc, 2.02-1.6, screw in studs, guide plates, heat riser
6085 Performer 87-93, center bolt valve cover, 60cc
6087 Performer 87, center bolt valve cover, 60cc, 165cc intake port
7700 Vr. Jr. Race Heads, Bare, 71cc, 212-267cc port, CNC Machined, 2.08-1.6,
7720 Same as 7700 exc complete

Big Blocks

058 241/86 cc port
063 256/114 cc port
083 243/110cc port
215 256/114cc port
241 252/116cc port
280 256/114cc port
290 256/114cc port
290 262/115cc port small plug head
291 327/120cc port
340 320/120cc port
820 255/114cc port
840 326/120cc port
842 318/112cc port
990 323/127cc port

330864 396-454 70-81 Oval Port
330865 366-427 70-76 Truck HD Oval Port
336781 454 73-85 Oval Port
343771 366-454 68-85 Truck HD
343772 366-454 76-84 Truck HD Oval Port
346236 454 75-76 Oval Port
353049 400-402 70-76 Oval Port
473328 366 68-85 Truck HD Oval Port
3732791 348 58
3758379 348 59-61
3759256 348 58
3767738 348 59-61
3781147 348 60-61 Hi Perf
3795586 409 61 360HP
3814690 409 62-64 Hi Perf
3819333 348-409 62-65 Truck
3830817 409 63-65 340 HP
3837731 409 63 RPO Z11
3852583 409 65 400 HP
3856206 396 65 Oval Port
3856208 396 65 Corvette 425 HP Sq. Port
3856213 366 66-82 Oval Port
3856260 396 68
3872702 396-427 66 Oval Port
3873858 396, 427 66 Sq. Port
3876875 427 77-85 Truck Oval Port
3904390 396-427 67 Oval Port
3904391 396-427 67 Sq. Port
3904392 427 67 Sq. Port Alm L-88 & L-89
3904393 366 66-68 Truck Oval Port
3909802 396-427 67 Oval Port
3917215 396-427 68 Oval Port
3917219 366-427 68-85 Truck HD Oval Port
3919840 396-427 67-69 Sq. Port
3919842 396-427 68-69 L-88 & L-89 Alm
3931063 396-427 68-72 Oval Port
3933148 366-427 68-84
3933149 427 68-76 Truck
3946074 454 69-71 Alm. L-88, ZL-1, LS-6
3964290 400-454 70 Oval Port
3964291 402-454 70 Sq. Port L-78, LS-6
3965198 396 68-69 Oval Port
3975950 366-427 68-70 Truck Oval Port
3986133 366-427 68-85 Truck Oval Port
3986136 366-427 68-84 Truck Oval Port
3993820 400-454 71-72 Oval Port
3994026 454 71 LS-6 Sq. port
3999241 402-454 72 Oval Port
6272292 402-454 70-75 Oval Port
14092359 427 86-88 Truck Oval Port
14092360 454 85-88 Truck Oval Port


http://chevyresource.com/

http://www.kerrywilson.com/vin.htm

http://www.crankshaftcoalition.com/wiki ... N_decoding

http://www.nastyz28.com/chevy-transmiss ... cation.php

http://www.yearone.com/updatedsinglepag ... info2.html

http://www.aacncclub.com/

http://corvettec3.ca/partsman.htm

http://www.mortec.com/castnum.htm

http://www.holisticpage.com/camaro/parts/head.htm

http://www.mortec.com/castnum.htm

http://www.fastnuf.com/bbccastingnumbers.html

http://www.nastyz28.com/bbcmenu.php

http://www.nastyz28.com/sbchevy/sblock.php

http://www.geocities.com/meanracing/Blo ... ation.html

http://www.vehicleidentificationnumber.com/
 
Last edited by a moderator:
Re: casting numbers from old mortec site

CHEVY V-8 CASTING NUMBERS
SMALL BLOCK CHEVY V8 CASTING NUMBERS

http://web.archive.org/web/200805130402 ... om/bbc.htm

http://web.archive.org/web/200805070404 ... cation.htm

http://enthusiast.yearone.com/vehicle-i ... -decoding/

http://web.archive.org/web/200803241314 ... catpg2.htm

http://www.chevellestuff.com/qd/intake_ ... y_year.htm
theres more info in the links and sub-links, posted below , but the basic infos listed above
viewtopic.php?f=51&t=93&p=117&hilit=casting+numbers#p117

viewtopic.php?f=44&t=632&p=846&hilit=casting+numbers#p846

http://www.camaros.org/drivetrain.shtml#PadStamps

viewtopic.php?f=51&t=93&p=9023&hilit=casting+numbers#p9023

http://www.nastyz28.com/chevy-engine-code-stampings.php

http://www.thecamaro.com/Decoding/Chevy ... ecoder.php

How to locate your casting numbers, casting dates and suffix codes:

SBC BLOCKS

CASTING#.....SIZE...YEAR...MAIN CAP BOLTS....NOTES


140029.....350...80-84...2
330817.....400...72-80...2
355909.....262.....75....2
355909.....305...76-79...2
360851.....262...75-76...2...Monza V-8
361979.....305...77-79...2 or 4, some Canadian assembled heavy duty blocks have 4-bolt main caps
366245.....350...78-79...4...Bowtie
366286...................4...Bowtie, siamesed,
straight nodular iron main
caps, 2-piece seal, 4.00-4.150"
bores, 2.45" main journals
366298...................4...Bowtie, Aluminum, billet main caps, 3.398" bore with sleeves, two piece rear main seal.
366299...................4...Bowtie, Aluminum, nodular
iron splayed caps, wet sump,
4.00" bore
389257.....302.....67....2
393288.....283...65-67...2
460703.....350.....78....4
460776.....305...78-79...2
460777.....305...78-79...2
460778.....305...78-79...2 or 4, some Canadian assembled heavy duty truck blocks have 4-bolt main caps
471511.....267...79-82...2
3556519....283...58-61...2
3703524....265.....55....2...No oil filter
3720991....265...56-57...2
3731548....265...57......2...No side motor mounts
3731548....283...57......2...No side motor mounts
3737739....283...58-64...2
3756519....283...58-62...2
3782870....327...62-67...2
3789817....283...62-64...2
3789817....327...62-67...2
3789935....283...61-64...2
3790721....283...62-64...2...Chevy II recessed oil filter boss
3790721....327...65-66...2...Chevy II recessed oil filter boss
3791362....327...62-67...2...Chevy II recessed oil filter boss
3792563....327.....65....2
3792582....283...64-65...2
3794226....283...58-63...2
3794460....327...62-64...2
3830944....327.....63....2
3834810....283...64-66...2
3834812....283...62-63...2
3837739....283...58-62...2
3849852....283...57-66...2
3849935....283...65-67...2
3858174....327...64-67...2
3858180....327...64-67...2
3858618....350...68-76...2
3862194....283...65-67...2...Chevy II recessed oil filter boss
3862812....283...62-64...2
3892657....302.....67....2...Z-28 Camaro
3892657....327.....67....2
3892657....350.....67....2...Camaro
3896944....283...66-67...2
3896948....283...66-67...2
3903352....327.....67....2
3914636....307.....68....2
3914638....307.....68....2
3914653....307...68-73...2
3914660....327.....68....2
3914678....302.....68....2...Z-28 Camaro
3914678....327.....68....2
3914678....350.....68....2
3931174....307.....68....2...Truck
3932371....307...69-73...2
3932373....307...68-73...2
3932386....302.....69....4...Z-28 Camaro
3932386....327.....69....2
3932386....350.....69....2 or 4
3932388....327.....69....2
3932388....350.....69....2 or 4
3933180....327...68-69...2
3951509....400...70-71...4
3951509....400...74-80...2
3951511....400...70-73...4...Some replacement blocks had 2-bolt main caps
3956618....302.....69....4...Z-28 Camaro
3956618....327...68-69...2
3956618....350.....69....2 or 4
3956632....307.....69....2
3959512....327...62-67...2...Was also used for some "CE" replacement blocks
3959532....283...64......2...Used for some "CE" replacement blocks
3959538....327...........2...Chevy II recessed oil filter boss, Used for some Chevy II "CE" replacement blocks
3970010....302.....69....4...Z-28 Camaro
3970010....327.....69....2...Trucks and industrial
3970010....350...69-80...2 or 4
3970014....350...70-76...2 or 4
3970020....307...69-73...2
3970024....307...69-73...2
4715111....305.....80....2
6259425....350...69-76...2
10036033...350...........4...Goodwrench crate motor, 2-piece rear
seal, "Hecho en Mexico"
10046164...305.....86....2
10049804.................4...Aluminum, Pontiac Super Duty version of Gen.I SBC, 4.00" bore,
350 mains, 2-piece rear seal, splayed caps, GTP race block
10051182.................2 or 4...Bowtie, 3.75"-4.30" bores, 1 or 2-piece rear seal
10051184.................4...Bowtie, 4.00"-4.155" bores, 1 or 2-piece rear seal
10054727...350...86-up...2 or 4...one piece rear seal, some "Made in Canada"
10066036...350...........2 or 4...Target Master/Goodwrench crate motor, 2-piece rear
seal, "Hecho en Mexico"
10066038...350.....92....4...Goodwrench crate motor, 2-piece rear
seal, "Hecho en Mexico"
10090511...350.....90....2...LT-5, ZR1 Vette, 375hp
10125327...350...92-up...2 or 4...Gen.II LT-1, reverse flow cooling
10125327...350...96-up...2 or 4...Gen.II LT-4, reverse flow cooling
10134398.................4...Bowtie, Aluminum, 4.125" bore, 2.65" main journals
10134996.................4...Bowtie, Aluminum, 4.125" bore
2.65" main journals
10153558...350...91-92...4...LT-5, ZR1 Vette, 375hp
10168588...265...94-96...2...L99, Gen.II, 4.3 Liter V-8, Caprice, reverse flow cooling
10199001...350...93-95...4...LT-5, ZR1 Vette, 405hp
10243878...305...96-98...2...Vortec truck, roller cam, one-piece rear seal
10243880...350...95-00...2 or 4...Vortec truck, Gen.I crate motors and "ZZ4", roller cam, one piece rear seal
12550592...350...97-up...crossbolted block, Gen.III, "LS1", aluminum
12551358.........99-up...Gen.III, 4.8L or 5.3L, cast iron, truck
12551364...364...98-04...crossbolted cast iron Gen. III, 6.0L, truck
12559378...350...99-up...crossbolted block, Gen.III, "LS1", aluminum
12559846...350...98-up...crossbolted block, Gen.III, "LS1", aluminum
12560621...350...98-up...crossbolted block, Gen.III, "LS1", aluminum
12560626...350...99-up...crossbolted block, Gen.III, "LS1", aluminum
12560629...350...99......crossbolted block, Gen.III, "LS1", aluminum
12561168...350...01-up...crossbolted block, Gen.III, "LS1", aluminum
12562174...350...98-up...crossbolted block, Gen.III, "LS1", aluminum
12568952...364...05-up...crossbolted block, Gen.III, 6.0L, aluminum, LS2
12566910...325...04-up...crossbolted block, Gen.III, 5.3L, aluminum, SSR truck
12571048...325...04-up...crossbolted block, Gen.III, 5.3L
12573581...364...98-04...crossbolted cast iron, Gen.III, 6.0L, truck
12577184...364...98-04...crossbolted cast iron, Gen.III, 6.0L, truck
12577396.........02-up...Gen.III, 4.8L or 5.3L, cast iron, truck
14010201...305...80-85...2
14010202...305...80-85...2
14010203...305...80-85...2
14010207...350...80-85...2 or 4
14010209...350...80-85...2 or 4
14010280...267...79-82...2
14011064...350...83......4
14011148...350...87-89.......Roller cam, one-piece rear seal
14016376...267...79-82...2
14016379...350...77-79...2 or 4
14016381...305...80-84...2
14016382...305...79-84...2
14016383...305...80-85...2...Truck
14079287...350...86-90.......Truck
14088526...350...87-89.......Roller cam, one-piece rear seal
14088548...350...86-88...2 or 4
14088551...305...86-87...2...one-piece rear main seal
14093627...305...87-94...2...Roller or flat tappet cam, one-piece rear seal
14093638...350...87-95...2 or 4...Roller or flat tappet cam, one-piece rear seal
14094766...305...86-up...2...One-piece rear seal
14101147...305...85-up...2
14101148...350...86-90...4...One-piece rear seal
14102058...305...87-91...2...Roller cam, one-piece rear seal
22551656.................4...Chevy/Olds Rocket block, 4.00"-4.190" bores, 2.45" main
journal sizes, splayed caps, dry sump,
2-piece rear seal, 9.025" deck
22551660.................4...Chevy/Olds Rocket block, 4.00"-4.190" bores, 400 mains
journal sizes, splayed steel caps, wet sump, raised cam
2-piece rear seal, 9.300" deck


GO TO BIG BLOCK V-8 CASTING NUMBERS

GO TO CHEVY 348-409 V-8 CASTING NUMBERS


SBC HEADS

If you don't know where to look on your engine for all of the casting numbers, casting dates and suffix codes, see our pages at http://www.mortec.com/location.htm and http://www.mortec.com/locatpg2.htm.

330545.....73......350..........76cc chamber, 2.02/1.60
333881.....74-75...350..........76cc chamber, 2.02/1.60
333882.....74-80...350/400......76cc chambers
340292.....70's.......Over the counter, angle plug, 64cc chamber
354434.....75-79...262/267/305...60cc chambers
358741.....76-79...305
376445.....77-85...350..........76cc chamber, small valves
376450.....75-81...262/267/305..6 or 7 exhaust bolt holes, 60cc chamber
462614.....77-79...305..........60cc chamber
462624.....75-86...350/400......76cc chamber, 1.72/1.5, 1.94/1.5 or 2.02/1.6 valves
458642.....75-84...350..........350
468642.....76-up...350/400
471513.....79......267/350
517513.....79......267/350
1816887....63......283..........Made in "Canada", GMC HD truck
3636839....55......265
3703523....55......265
3713358....55-56...265
3713569....55-56...265
3725306....56......265
3731539....57......283..........283 HP FI
3731544....57-61...283
3731554....57-62...283
3731556....57......283..........Truck, Made in Canada
3731762....56......265..........Vette, 2x4 carbs
3737775....62-67...283/327
3740997....57......283..........1x4, 2x4 & FI (exc.-283hp)
3743056....58......283
3743096....62-67...327..........GMC Truck
3747363....57-61...283
3747460....59-67...283/327......70cc chambers
3748770....58......283
3748772....58-61...283
3755537....57-62...283
3755539....58-62...283
3755549....57-62...283
3755550....59......283
3755585....62-67...327..........GMC Truck
3767460....59-60...283
3767462....62-67...327
3767465....59-61...283
3767754....59-61...283..........60cc chambers
3767792....60-64...283
3774682....60-64...283/327......70cc chambers
3774684....62-64...327..........75cc chambers
3774692....58-64...283..........60cc chambers
3782461....64-66...327......Camel hump,no accessory holes,160/62cc port volumes,62cc chamber
3782461X...60-63...283/327..Camel hump,no accessory holes,larger 172/64cc port volumes, 62cc chamber
3795896....63-65...283......60cc chamber
3795896....62-64...327......60cc chamber
3798996....63-67...327
3814480....60-67...283/327..70cc chambers, 1.72/1.5 valves
3814482....62-67...283/327/350..75cc chambers
3817680....63-67...283/327
3817681....62-67...327
3817682....61-62...283
3836839....55......265
3836842....57-67...283/327
3837064....56-62...265/283
3837065....55-56...265..........Truck
3848720....57-58...283
3876775....60-67...283/327......75cc chamber
3884520....60-67...283..........Some marked "Made in Canada", 60cc chamber, also used by Studebaker
3884520....62-67...327..........Some marked "Made in Canada", 60cc chamber, also used by Studebaker
3890462....66-67...302/327/350..Camel hump,no accessory holes,64cc chamber
3901068....87-up...350..........Crate motor, 285hp, 64cc chamber
3911032....68......307/327......70cc chamber
3912264....58-62...283
3912265....63-64...283
3912311....65-67...327
3912313....65-67...327
3917290....67-68...307/327
3917291....67-68...302/327/350..Camel hump,no accessory holes,64cc chamber
3917292....68......327/350......Camel hump,64cc chamber
3917293....67-68...307/327......75cc chambers
3927185....69-76...307/327/350..70cc chambers
3927186....69-70...302/350......Camel hump,64cc chambers,accessory holes
3927187....69-70...350..........Camel hump,64cc chambers,accessory holes
3927188....69......327..........74cc chambers
3927188....70......307..........74cc chambers
3931633....68-73...307
3931635....68-76...350
3931638....68......327..........Truck
3932441....69-70...350..........76cc chambers
3932441X...69-70...350/400......80cc chambers
3932454....69-73...307
3932454....69-79...350..........Truck
3946812....69......350
3946813....69-79...350..........Truck
3947040....68......327.........."Right angle" casting identifier, 64cc chambers, good HP head,
used in trucks, no accessory holes
3947041....69-70...302/350......"Right angle" casting identifier, 64cc chamber, accessory holes, good HP head
3947041X...69-70...302/350......"Right angle" casting identifier, 64cc chamber, 165cc intake port, accessory holes, good HP head
3951598....70......400..........76cc chambers
3964286............350
3965742....70......350..........over the counter, angle plug
3970126....67-71...327/350
3973370....69-70...350..........over the counter in US, Canadian 350/300hp production use in Pontiac, 64cc, straight or angle plug
3973414....70......350..........LT1-350/370hp, Camel hump, 64cc chamber
3973487....71-72...350..........1.94/1.5 or 2.02/1.6 valves, was also used on '71 350/330hp LT1, 75cc chamber
3973487X...71-72...350..........1.94/1.5 or 2.02/1.6 valves, 75cc chamber
3973493....71-72...400..........76cc chamber
3986316....71......350..........76cc chamber
3986336....71......350..........76cc chamber
3986336X...71......350..........76cc chamber
3986339....71......307/350......74cc chamber
3986339X...71......307/350......74cc chamber
3986388....68-76...307/350
3991492....70......350..........LT1,Camel hump,accessory holes,64cc, straight plug
3991492....70-up................over the counter,Camel hump,64cc, straight or angle plug
3998916....72......350..........also used w/'72 350 LT1, big valves, screw in studs, 76cc chambers
3998920....72-73...350
3998991....72-73...307/350......75cc chambers
3998993....72-73...307/350......75cc chambers
3998993....current..350.........Goodwrench crate motors,"Hecho en Mexico", 75cc chambers
3998997....72-73...350/400......76cc chambers
3998997....78-84...305/350......76cc chambers
4079261....75......350
10033867........................Aluminum,over the counter Pontiac 23' head,62cc,angle plug, 196cc intake port
10045434........................Over the counter Pontiac 15' head
55cc, angle plug, raised runner
aluminum, "roll over" head
10051101........................Bowtie, aluminum, 55cc, angle plug
raised runner, 196cc intake port
10065202...87-95...350..........Truck
10065203...87-95...350..........Truck
10065204...87-95...350
10065205...87-95...305
10065206...87-95...350
10065207...87-95...305
10088113...88-up...350..........Aluminum, 58cc, angle plug, raised
"D" port exhaust, 1.94"/1.5" valves
10093328........................Over the counter, Pontiac 15' head
aluminum,224cc ports, 61cc chambers,
"roll over" head
10106178...90......350..........LT5, ZR1, DOHC, 32-valve,
pass. side, aluminum
10106179...90......350..........LT5, ZR1, DOHC, 32-valve,
drvs. side, aluminum
10110810...91-up...350..........Gen. 1, 65cc chambers
10120928...87-95...350
10125320...94-96...350..........Gen.II LT1, cast iron version, used
on "9C1" Police package, Impala SS,
Cadillac Fleetwood, Buick Roadmaster
reverse flow cooling
10128374...92-up...350..........Gen.II LT1, 53cc, angle plug,
aluminum, reverse flow cooling,
175/68cc ports
10134352........................Bowtie, 45cc, angle plug, "low"
port, 223cc intake port, aluminum,
18' race head
10134363........................NOTE: This casting # has been used
in many different versions of this
aluminum 18' and 15' Bowtie race head.
Different chamber volumes, port
volumes, port locations, valve sizes,
etc. were used. Check this casting
carefully to determine which features
it may have. There are at least 6
different versions as of 11/99.
10147898...95-98...350..........Gen.I crate motor
10159550...87-95...350
10159551...87-95...305
10159552...87-95...350
10159553...87-95...305
10174389...91-94...350..........LT5, ZR1, DOHC, 32-valve,
drvs. side, aluminum
10174390...91-95...350..........LT5, ZR1, DOHC, 32-valve,
pass. side, aluminum
10185040........................Bowtie, aluminum, 45cc chambers,
1st version, symmetrical ports,
263cc intake ports, splayed valves
10185040........................Bowtie, aluminum, 45cc chambers,
2nd version, symmetrical ports,
240cc intake ports, splayed valves
10205245...93......350..........Gen.II LT1, aluminum, reverse
flow cooling, 175/68cc port volumes
10207643...94-96...350..........Gen.II LT1, aluminum, reverse
flow cooling, 175/68cc port volumes
10208890...94-96...265..........Gen.II, L99, 4.3 Liter V-8, cast iron, reverse flow
10215339...97......350..........Gen.III, LS1, aluminum, 68cc
10225121...94-95...350..........LT5, ZR1, DOHC, 32-valve,
drvs. side, aluminum
10225122...95......350..........LT5, ZR1, DOHC, 32-valve,
pass. side, aluminum
10239902...96-up...350..........Gen.II LT4, aluminum, reverse
flow cooling, 195cc port, 54.4cc chamber, angle plug
10239906...96-up...350.........."Vortec 5700", "L31", 64cc chamber,
170cc intake port, 1.94"/1.5" valves
12367712...99-up................"Fast Burn", aluminum, 210cc intake,
port, 2.00/1.55 valves, 62cc chamber
12367713...99-up................"Fast Burn" used on ZZ430 crate motor, aluminum, 210cc intake
port, 2.00/1.55 valves, 62cc chamber
12480005...2000.................LS1 "GTZ", aluminum, 38cc, 2.125"/1.625" valves, angle plug
12480011...97-up................Bowtie "SB2.2", aluminum, 2nd
version of "SB2", 48cc chambers,
"mirror ports", revised valve
angles & plug location
12506450...87-95...350
12509859...87-94...305
12516852...87-95...350
12529742...95-96...265..........Gen.II, "L99", cast iron
12551561...96......350..........Gen.II, "LT1", aluminum
12552520...97-up...305..........Vortec, truck
12554290...94-96...350..........Gen.II, "LT1", cast iron version, used
on "9C1" Police package, Impala SS,
Cadillac Fleetwood, Buick Roadmaster
reverse flow cooling
12554291...95-96...265..........Gen.II, "L99", cast iron
12555690...96......350..........Gen.II, "LT4", aluminum
12556743...99......325..........Gen.III, 5.3L, aluminum, truck, van
12558059...97......305..........Vortec, truck, 1.84"/1.5" valves
12558062...98......350..........L31 Vortec, truck, 64cc chambers, 1.94/1.5, 170cc intake port
12558806...97-98...350..........Gen.III, "LS1", aluminum, 68cc
12559853...99-up...350..........Gen.III, "LS1", aluminum, 68cc
12559862...99-00................Gen.III, aluminum 4.8/5.3L
12559895...00-up...325..........Gen.III, aluminum, Vortec 5.3L
12561706...01-04................Gen.III, 5.3L, aluminum
12561873...99-01...364..........Gen.III, 71cc, iron
12562317...01-04...364..........Gen.III, 71cc, aluminum
12564241...00-up...350..........Gen.III, "LS1", aluminum, 68cc
12564243...01-up...350/364......Gen.III, "LS6", "LS2", aluminum
12572035...01-04...364..........Gen.III, 6.0L, aluminum, 71cc
14008856...79-81...267
14010201...82-85...305
14011034........................Bowtie, cast iron, 64cc chambers,
184cc port volume, angle plug,
"Phase II" head
14011049........................Bowtie, aluminum, 55cc chambers,
angle plug, 180cc ports, "Phase 6"
14011083...55-86...350..........Crate motor for years indicated.
285/300hp, 64cc chambers, 1.94"/1.5" valves
14014415...80-85...267/305
14014416...80-86...305..........1.84"/1.5" valves, 58cc chambers
14014440...80......305..........1.84"/1.5" valves
14019821...80-86...350
14019924...79-81...267
14019926...80-86...350
14010516...80-86...350
14020517...80......350
14020555...81......305
14020556...81......350
14022056...85......350
14022206...80......350
14022301...80-86...305
14022601...80-86...267/305......1.72"/1.5" or 1.84"/1.5" valves, 53cc chambers
14022801...80-86...305
14024816...........350..........76cc chambers, 1.94/1.5 valves, Gen.I crate motors
14034806...78-82...267
14034807...78-86...305
14034808...80-86...350
14034808...96-up...350..........76cc chambers, 1.94"/1.5" valves, Gen.I Goodwrench crate motors
14034810...80-86...350..........Truck
14034811...80-86...350..........Truck
14039121...81-86...305..........Truck
14039122...81-86...305..........Truck
14071114...80-86...350
14075381...80-86...350..........Truck
14079261...86......350
14085844...80-86...350..........Truck
14085963...86......350
14088526...........350..........Gen.II, LT1, aluminum
14089119...86-88...350
14094093...86-88...350
14096217...55-86...350..........Crate motor, 285hp/300hp, 64cc chambers,
72' or 90' center intake manifold bolt angles
14101081...87-95...305
14101083...87-up...350..........Gen.I, also used on crate motors, 285 or 300 hp, 64cc
chambers, 72' center manifold bolt
angles
14101128...86-87...350..........Aluminum, 58cc, angle plug
14102187...87-91...305..........1.84"/1.5" valves
14102191...87-up...350
14102193...87-up...305/350......1.94"/1.5" valves
22542525........................Dart/Olds/Chevy aluminum, 14'or 17' race head.
24502559...96-97................Bowtie, "SB2", 1st version,
"mirror ports", aluminum, 196cc port, CNC version 280cc port, 38cc chamber
25500141........................Buick/Chevy aluminum, 10' race head,
42cc chambers, symmetrical ports,
235cc intake port volumes,
2.1"/1.625" valves
25534351C..04-up................Gen.I Bowtie, cast iron Vortec head, 175/65cc ports, 2.00/1.55 valves, "small port head"
25534371C..04-up................Gen.I Bowtie, cast iron Vortec head, 206/77cc ports, 2.00/1.55 valves, "large port head"
33417369...90-up...350..........Gen.I Goodwrench crate motor,"Hecho en Mexico", 76cc
 
Last edited by a moderator:
Re: casting numbers

BIG BLOCK CHEVY V-8 CASTING NUMBERS

http://gearheadgeek.com/ghgj/index.php/ ... -s?start=1

Follow these links for engine casting number locations, engine casting dates, Chevy engine suffix codes and Chevy Engines on Ebay.


http://garage.grumpysperformance.com/index.php?thr...

http://garage.grumpysperformance.com/index.php?thr...


0-326711.....................4-bolt, Alum., CanAm, 4.44" bores, steel cylinder liners
340220.....427T......68-85...4-bolt
345014.....454.......70-86...
346236.....454.......75-76...2-bolt
359070.....454.......70-90...
361959.....454.......73-90...2 or 4 bolt
364776.....427T......68-85...4-bolt
364779.....366T......68-90...4-bolt
399204.....509.......70-71...4-bolt, Alum., CanAm, 4.5" bores, steel Cylinder liners
399293.....366T......77-78...4-bolt
473478.....427T......77-90...4-bolt
495102.......................4-bolt, Alum., CanAm, 4.5" bores
3782870....427T......68-76...4-bolt
3824553....366T......66-67...4-bolt
3855961....396.......65-66...2 or 4 bolt
3855961....427.......66......2-bolt
3855962....396.......65-66...4-bolt
3855977....366T......66-73...4-bolt
3869942....427.......66-67...2 or 4 bolt
3902406....396.......67......2 or 4 bolt
3904351....427.......67......2 or 4 bolt
3904354....366T......66-76...4-bolt
3916319....366T......68......4-bolt
3916321....427.......68......2 or 4 bolt
3916323....396.......68......2 or 4 bolt
3925521....427T......68-85...4-bolt
3935439....427.......68-69...2 or 4 bolt
3935440....396.......68-69...2 or 4 bolt
3937724....366T......68-85...4-bolt
3937726....427T......68-84...4-bolt
3946052....427.......69......4-bolt, Alum. ZL-1, Mark IV
3946053....427.......97-up...4-bolt, Alum. ZL-1, 2nd version, Mark IV
3955270....427.......69......2 or 4 bolt
3955272....396.......69......2 or 4 bolt
3955274....366T......68-85...4-bolt
3955276....427T......68-73...4-bolt
3963512....427.......69......2 or 4 bolt
3963512....454.......70-76...2 or 4 bolt
3969852....366T......68-84...4-bolt
3969854....396.......69......2 or 4 bolt
3969854....402.......70-72...2 or 4 bolt
3969858....427T......68-84...4-bolt
3999289....454.......71-79...2 or 4 bolt, some "CE" replacement blocks had four bolt main caps
3999290....396.......68-69...2 or 4 bolt, Truck
3999290....402.......70-72...2 or 4 bolt, Truck
3999290....402.......72......2 or 4 bolt, Passenger
3999293....366T......68-90...4-bolt
3999294....427T......68-84...4-bolt
10051107...454...............4-bolt, Bowtie, MkIV, 9.8" deck, siamesed bores, 4.25" semi-finished bores, can be bored to 4.50"
10069282...366T......90-91...4-bolt, Mark IV, Tall deck
10069284...427T..............4-bolt, Mark IV, Tall deck
10069286...454.......90-91...4-bolt, Mark IV, Short deck
10114182...454.......91-up...4-bolt, Gen.V
10114183...366T......91-up...4-bolt, Gen.V
10114184...427T......91-up...4-bolt, Gen.V
10134366...454T..............4-bolt, Bowtie, Gen.V, Tall deck
10185050...454...............4-bolt, Bowtie, Gen.V, Short deck
10237297...454.......96-up...4-bolt, Vortec 7400", "L-29" Gen.VI
10237299...427T......96-up...4-bolt, Gen.VI, 7.0L, truck
10237300...502.......96-up...4-bolt, Gen.VI, 4.466" bore
12550312...427T......96-up...4-bolt, Gen.VI, 4.250" bore, fuel pump boss, clutch linkage pivot boss
12550313...454.......91-up...4-bolt, Gen.V crate motor, Gen. VI 4.25" bare block, fuel pump boss
12556110...496.......01-up...4-bolt, Gen.VII 8.1L, "Vortec 8100", Truck
12561357...454.......96-up...4-bolt, Gen.VI
12561358...502...............4-bolt, Gen. VI
14015443...454.......87-90...2 or 4-bolt, Mark IV, Truck, Motorhome
14015445...454.......78-90...2 or 4 bolt
14044807...454T..............4-bolt, Bowtie, MkIV, CNC prep, Tall deck, 4.25" bore or 4.495" bores
14096859...502...............4-bolt, Gen.V, HO
24502504...454...............4-bolt, Bowtie, Gen.V, Race prep, 9.8 "short" deck height
24502506...454T..............4-bolt, Bowtie, Gen.V, Race prep, 10.2 "tall" deck height
24502572.....................4-bolt, 4.5" bore Olds DRCE 2, 9.5" deck height
25534402.....................4-bolt, 4.590" bore Olds DRCE 3, 9.25" deck height



T = Tall deck, 10.2" deck height


1991 and later Gen.V, VI and VII production BBC motors have one-piece rear main crank seals.


GO TO CHEVY SMALLBLOCK V-8 CASTING NUMBERS

GO TO CHEVY 348-409 V-8 CASTING NUMBERS


BBC HEADS


If you don't know where to look on your engine for all of the casting numbers, casting dates and suffix codes, see our pages at http://www.mortec.com/location.htm and http://www.mortec.com/locatpg2.htm.


330864.....68-84...oval...OPEN...396, 402, 366T,
427T, 454 Truck
330865.....68-84...oval...OPEN...396, 402, 366T,
427T, 454 Truck
330866.....68-78...oval...OPEN...366T, 427T
330867.....68-73...oval...OPEN...427T
336765.....68-78...oval...OPEN...427T
336768.....73-76...oval...OPEN...427T
336781.....73-85...oval...OPEN...454, 118cc chamber, 256/114cc ports
343771.....68-86...oval...OPEN...366T, 427T, 454
343772.....68-86...oval...OPEN...366T, 427T, 454
343783.....70-76...oval...OPEN...454 Truck
346236.....75-87...oval...OPEN...454, 120cc chamber, 225/116cc ports
352625.....70-76...oval...OPEN...454 Truck
353049.....73-84...oval...OPEN...454, 122cc chamber, 255/119cc ports
366765.....74-78...oval...OPEN...427T
473328.....68-69...oval...OPEN...366T
3856206....65-66...oval..CLOSED..396, 97cc chamber
3856208....65......rect..CLOSED..396/425hp, 109cc chamber
396/375hp "Z-16" Chevelle
3856213....66-82...oval..CLOSED..366T, 427T
3856260....68......oval..CLOSED..396 Truck
3872702....65-66...oval..CLOSED..396, 427, 98cc chamber
3873858....65-67...rect..CLOSED..396, 427, 109cc chamber
3876875....77-85...oval...OPEN...427T
3904390....67......oval..CLOSED..396, 427, 98cc chamber
3904391....67......rect..CLOSED..396, 427, 107cc chamber
3904392....67......rect..CLOSED..427, Aluminum, L88, L89, 107cc chamber
3904393....68-76...oval...OPEN...366T
3908952....67......oval...OPEN...427, "M.Truck", Marine
3909802....67......oval..CLOSED..396, 427, 101cc chamber
3917215....67-68...oval..CLOSED..396, 427, 101cc chamber
3917219....68-85...oval...OPEN...366T, 427T
3919840....67-69...rect..CLOSED..396, 427, 107cc chamber
3919842....68-69...rect..CLOSED..396, 427, Aluminum L88, L89, 107cc chamber
3931063....68-69...oval..CLOSED..396, 402, 427, 101cc chamber
3933148....69-84...oval...OPEN...'69 396/265hp, 366T, 427T, 112cc chamber
3933149....68-76...oval...OPEN...427T, 122cc chamber
3935401....68-76...oval...OPEN...427T
3946074....69&71...rect...OPEN...'69 427 L88, ZL1, Aluminum, 118cc chamber
'71 454 LS6, "round exhaust port"
3964290....69-70...oval..CLOSED..396, 402, 427, 454, 101cc chamber
Large or small hex spark
plugs used
3964291....69-72...rect..CLOSED..396, 402, 427, 454, 109cc chamber, Large or small hex spark plugs used, crate motor usage in years after 1970.
3965198....68-69...oval..CLOSED..396 Truck
3975950....68-70...oval...OPEN...396, 402 Truck, 366T, 427T
3986133....68-85...oval...OPEN...366T, 427T, 454 Truck
3986135....69-73...oval...OPEN...366T, 427T
3986136....68-84...oval...OPEN...366T, 427T, 454 Truck
3993820....71......oval...OPEN...402, 113cc chamber, 255/114 ports
3993820....71-84...oval...OPEN...454 Passenger and Trucks, 113cc chamber, 255/114 ports
3994026....71......rect...OPEN...454 LS6, 118cc chamber
3999241....72......oval...OPEN...402, 454, 113cc chamber

6272292....70-78...oval...OPEN...402, 454
6272990....70-up...rect...OPEN...454 service replacement, used on some MKIV crate engines, 118cc chamber
10045427...........rect..........Pontiac/Chevy Aluminum, 91cc chamber
Large Port, race
10049875...........rect..........Pontiac/Chevy Aluminum
Small port, race
10051128...........rect..........Bowtie, Aluminum 72cc chambers
Symmetrical ports
10051129...........rect..........Bowtie, Aluminum "raw"
casting, Symmetrical ports
10052902...........oval...OPEN...MkIV, 427T
10101140...91-up...oval..CLOSED..Gen.V 366T, 427T
10114156...91-up...oval...OPEN...Gen.V & VI 454, 118cc chamber
10141279...96-up...oval..CLOSED.."Vortec 7400", 100cc chambers
10487052...77-90...oval...OPEN...366T
12363391...96-up...oval...OPEN...Bowtie, Aluminum, Signature
Series, fits MKIV, Gen.V, Gen.VI, 110cc chamber
12363401...96-up...rect...OPEN...Bowtie, Aluminum, Signature
Series, fits MKIV, Gen.V, Gen.VI, 118cc chamber
12558162...01-up...oval..CLOSED..Gen.VII,"Vortec 8100", 8.1L, 496, truck
12560241...98-up...oval..CLOSED.."Vortec 7400", 100cc chambers
12562932...91-95...oval...OPEN...Gen.V, truck crate motor, 118cc chambers
12562933...91-95...oval...OPEN...Gen.V, 118cc chambers
12562934...00-up...rect...OPEN...Gen.VI 502 Marine
14011077...69-up...rect...OPEN...Aluminum, fits MKIV, "C-port"
118cc chamber, also sold as a "solid" head
14044861...84-96...rect..........Bowtie, Aluminum, MkIV,
"raised runners", 1st design, 105cc chamber
14044861...96-up...rect..........Bowtie, Aluminum, Signature
Series, fits MKIV, Gen.V, Gen.VI
"raised runners", 2nd design, 115cc chamber
14044861...84-96...rect..........Bowtie, Aluminum, MkIV
"raw" casting of "861" MKIV
1st design
14081045...78-87...oval...OPEN...454
14081052...85-87...oval...OPEN...366T, 427T, 454 Truck, Marked "HiPerf"
14092359...86-90...oval...OPEN...366T, 427T, Marked "HiPerf"
14092360...86-90...oval...OPEN...454 Truck, "peanut" round ports
14096188...70-71...rect...OPEN...454 service replacement, also used on later Mark IV LS-6, LS-7 and 454 HO crate motors, 116cc chamber
14097088...91-up...rect...OPEN...Gen.V 454/502 HO, 118cc chamber
24502585...97......rect..........Olds/Chevy, DRCE 2,
Pro Stock aluminum, for blocks w/4.900" bore spacing
25534404...04......rect..........Olds/Chevy, DRCE 3, Pro Stock, aluminum, for blocks with 4.900" bore spacing

T = Tall deck

Oval includes both "peanut" (also called "round") ports and large oval ports
 
Last edited by a moderator:
Re: casting numbers

CHEVY SMALLBLOCK V-8 Crankshaft Journal Sizes

http://garage.grumpysperformance.com/index.php?thr...

http://garage.grumpysperformance.com/index.php?thr...

http://garage.grumpysperformance.com/index.php?thr...


Gen.I, "Small Journal"

265...Mains-2.30"-Rods-2.00" 283...Mains-2.30"-Rods-2.00" 302...Mains-2.30"-Rods-2.00" 327...Mains-2.30"-Rods-2.00"

Gen.I, "Medium Journal", includes "Vortec" 305 and 350 thru '98 262...Mains-2.45"-Rods-2.10" 267...Mains-2.45"-Rods-2.10" 302...Mains-2.45"-Rods-2.10" 305...Mains-2.45"-Rods-2.10" 307...Mains-2.45"-Rods-2.10" 327...Mains-2.45"-Rods-2.10" 350...Mains-2.45"-Rods-2.10"

Gen.I, "Large Journal" 400...Mains-2.65"-rods-2.10"

Non-production Gen.I combination, using Gen.I 400 crank in Gen.I 350 block 383...400 crank, Mains cut to 2.45"-Rods-2.10"

Non-production Gen.I combination, using Gen.I 350 crank in Gen.I 400 block 377..."Spacer" or "thick" main bearings with 350 crank-Rods-2.10"

Gen.II, "Medium Journal", includes "L-99" 265, "LT-1" 350, "LT-4" 350 265...Mains-2.45"-rods-2.10" 305...Mains-2.45"-Rods-2.10" 350...Mains-2.45"-Rods-2.10"

Non-production Gen.II combination, using Gen.II 265 "L-99" crank in Gen.II 350 block 302...Mains-2.45"-Rods-2.10"

Gen.III, includes '97-2005 "LS-1" Corvette, Firebird, Camaro 345...Mains-2.558"-Rods-2.10"

Corvette "ZR-1", DOHC, "LT-5" 350...Mains-2.76"-Rods-2.10"


CHEVY BIG BLOCK V-8 Crankshaft Journal Sizes


366T
396
402
427
427T
454
502

ALL Chevy big blocks used...Mains-2.7488"-2.7495"---Rods-2.20"

CHEVY 348-409 "W" MOTOR V-8 Crankshaft Journal Sizes


348
409
427 "Z-11"

ALL "W" family motors used...Mains-2.50"-Rods-2.20"


Small Block Chevy Intake Manifold Casting Numbers
Years Casting CID bbls Material Carb Application
1974-76 340261 350 4 iron Q-jet A B F X/160,185,195,245,250HP
1973-81 340266 305,350 2 iron - A B F G
1982-85 340281 305,350 4 iron Q-jet B F
1976-82 346249 305,350 4 iron Q-jet all/155,165,205HP
1976-82 346250 305,350 4 iron Q-jet all
1973-77 346260 305,350 2 iron - A B F
1978-80 373598 305 2 al - G
1976-82 458520 305,350 4 al Q-jet all
1980-82 1403372 305,350 TTBI al cross-fire F Y
1955 3704790 265 2 iron - B
1955 3711348 265 4 iron - B Y
1956 3728725 265 8 al WCFB Y/225hp, 1st design
1986-57 3731394 283 8 al WCFB Y/225hp, 2nd design
1957 3731398 283 4 iron WCFB, 4jet B Y
1957 3732880 265,283 2 iron - B
1956 3735444 265 2 iron - B
1956 3735448 265 4 iron 4BBL Y /210hp
1956 3737109 265 4 iron - B
1957 3739653 283 8 al - Y /245,270HP
1957 3741193 283 FI al - B
1957 3746826 265,283 2 iron - B
1958-61 3746829 283 4 iron WCFB, Qjet B Y/230hp
1962-63 3783244 327 4 iron WCFB, Qjet B Y/250hp
1963 3794129 327 4 al AFB Y 340hp
1962 3795397 327 4 iron AFB Y 340hp
1972 3797771 350 4 iron - A B F
1962-64 3799349 327 4 iron AFB B Y/300hp
1963-65 3826810 327 FI - - Y
1956-57 3837109 265,283 4 iron WCFB, Qjet B Y/210hp
1964-65 3840905 283 2 iron - A B X C K
1964-65 3844457 327 4 iron WCFB, Qjet A B X Y/250hp, Srvc repl.
1963-65 3844459 327 4 iron AFB A B X Y/300hp, srvc repl.
1964-65 3844461 327 4 al Holley Y/350,360hp
1962-65 3866922 283,327 4 iron Qjet A B X/220hp/250hp, marine use
1966-67 3872783 327 4 iron Holley A B X/275hp, w/o AIR, srvc. repl.
1966 3875954 327 4 iron Qjet A B X/275hp, w/AIR
1965 3877652 283,327 2 iron - A B C K,trk
1966-67 3877656 327 4 al Holley 350hp Hirise
1966 3882858 283 4 iron Qjet A B X/220hp
1966-67 3890490 327 4 al Holley X Y/350hp hirise
1966-68 3905393 327 4 iron Q-jet A B F X/275hp
1967-68 3910601 327 2 - - A F X
1969-70 3916313 307,350 2 - - all
1967-68 3917610 302 4 al Holley Z-28, F, hirise
1968 3919801 307,327 2 iron - A B C X
1967-68 3919803 327,350 4 iron Qjet A B F X Y/250,275,325,350HP
1969 3927183 307,327 2 iron - A B F X
1969 3927184 350 4 iron Qjet A B F X Y/255,300,350HP, srv. rep.
1969 3932472 302 4 al Holley Z-28, F, Hirise
1967-69 3941126 302 8 al Holley Z28 X ram (bottom) released to race teams in '67 w/o casting#
1967-69 3941130 302 8 al Holley Z28 X ram (top) released to race teams in '67 w/o casting#, did have Winter Foundry 'snowflake" logo.
1969-70 3958622 307,327 2 iron
1969-70 3958626 350 2 iron
1971-72 3959594 350 4 al Holley Y, Z28, LT1, Hirise, 330/255hp
1970 3965577 350 4 iron Qjet B F X/300,350hp
1970 3972110 350 4 al Holley Y, Z28, LT1 360,370hp, Hirise
1970 3972114 350 4 al Z-28, F
3972116 350 4 al Holley hirise, service repl for '70 LT1
1971 3972361 350 4 al Holley Z-28, F
1969-71 3973465 307,327 2 - - A B F X
1971 3973469 350 4 iron Qjet B F Y/270hp
1969-70 3987361 350 - iron -
1971 3990948 350 - iron -
1973 3991004 350 - iron -
1971 3991005 307 iron
1973 3997770 350 4
1973 3997771 350 4 iron Qjet all/175,190,245,250hp
1973 3997772 307 - iron -
1972 6262928 350 - iron -
6262930 - iron Y
1972 6262932 350 iron -
1971-72 350 4 iron -
1972 6263751 350 4 iron Qjet all, 175,200hp
1973 6271060 350 - iron
1957 7014360 283 FI al -
1957 7014520 283 FI al -
1957-58 7014800 283 FI al -
1958-59 7014900 283 FI al -
1958 7014960 283 FI al -
1959-61 7017200 283 FI al
1959-60 7017250 283 FI al
1959-60 7017300 283 FI al
1960-61 7017310 283 FI al
1960 7017320 283 FI al
1962 7017355 327 FI al
1962 7017360 327 FI al -
1962-63 7017375 327 FI al -
1964-65 7017380 327 FI al -
1979-80 14007374 305 2 al -
1981 14014432 350 4 al -
1978-85 14057053 305,350
 
Last edited by a moderator:
Re: casting numbers

CHEVY SMALLBLOCK V-8 Crankshaft Casting Numbers

http://www.chevellestuff.com/qd/block_c ... y_year.htm

SBC TWO PIECE REAR MAIN OIL SEALS


1130.......327.......forged..medium journal...3.25" stroke
1178.......302.......forged..medium journal...3.00" stroke
1181.......305,350...cast....medium journal...3.48" stroke
1182.......350.......forged..medium journal...3.48" stroke
2680.......327.......forged..small journal....3.25" stroke
2690.......350.......forged..medium journal...3.48" stroke
3279.......302.......forged..medium journal...3.00" stroke
3474.......283.......forged..small journal....3.00" stroke, military tank use
4577.......327.......forged..small journal....3.25" stroke
4672.......327.......forged..medium journal...3.25" stroke
310514.....350.......cast....medium journal...3.48" stroke
330550.....350.......cast....medium journal...3.48" stroke
354431.....262.......cast....medium journal...3.10" stroke
3727449....283.......forged..small journal....3.00" stroke
3729449....265.......forged..small journal....3.00" stroke
3734627....327.......forged..small journal....3.25" stroke
3735236....265,283...forged..small journal....3.00" stroke
3735263....283.......forged..small journal....3.00" stroke
3782680....327.......forged..small journal....3.25" stroke
3814671....327.......forged..small journal....3.25" stroke
3815822..265,283,302.forged..small journal....3.00" stroke
3835236....283.......forged..small journal....3.00" stroke
3836266....283.......forged..small journal....3.00" stroke
3848847....283.forged or cast..sm. journal....3.00" stroke
3849847....283.......forged..small journal....3.00" stroke
3876764....283.forged or cast..sm. journal....3.00" stroke
3876768....283.......forged..small journal....3.00" stroke
3884577....327.......forged..small journal....3.25" stroke
3892690....350.......forged..medium journal...3.48" stroke
3911001....307,327...cast....medium journal...3.25" stroke
3911011....307,327...cast....medium journal...3.25" stroke
3914672....327.......forged..medium journal...3.25" stroke
3923279....302.......forged..medium journal...3.00" stroke
3932442..267,305,350..cast...medium journal...3.48" stroke
3941174....307,327...cast....medium journal...3.25" stroke
3941178....302.......forged..medium journal...3.00" stroke
3941182....350.......forged..medium journal...3.48" stroke
3941188....350.......forged..medium journal...3.48" stroke
3949847....283..forged or cast..sm. journal...3.00" stroke
3951130....327.......forged..medium journal...3.25" stroke
3951529....400.......cast....large journal....3.75" stroke


SBC ONE PIECE REAR MAIN OIL SEAL


10168568...265.......cast....medium journal...3.00" stroke
12552215...364.......cast....medium journal...3.62" stroke, Gen. III, 6.0L
12552216...325,350,364.......cast....medium journal...3.62" stroke, Gen. III 5.7L LS1, 5.3L, 6.0L
12553312...293.......cast....medium journal, 3.27" stroke, Gen. III, 4.8L
12553482...293.......cast....medium journal, 3.27" stroke, Gen. III, 4.8L
14088526...305,350...cast....medium journal...3.48" stroke
14088532...350.......forged..medium journal...3.48" stroke
14088535...305,350...cast....medium journal...3.48" stroke
14088552...350.......forged..medium journal...3.48" stroke


ZR1, "LT5", 350 DOHC


10106122...350.......forged..large 2.76" journal...3.66" stroke


CHEVY BIG BLOCK V-8 Crankshaft Casting Numbers
BBC TWO PIECE REAR MAIN OIL SEALS
3.76" STROKE used on '65-'90 Mark IV 366T, 396, 402, 427 or 427T


6223.......396,402,427...forged, 1053 steel
7115.......396,402,427...forged, nitrided, cross-drilled, 5140 steel
3804816....396,402,427...cast
3856223....396...forged
3863114....402...
3863144....396,402...
3874874....396,402...
3879621....427...forged
3882841....396...forged, cross drilled, nitrided
3882842....427...forged, cross drilled, nitrided
3882847....
3882848....
3882849....427...forged
3887114....396...forged, nitrided, 5140 steel
3904815....396,402...cast, nodular iron
3941180....
3942411....
3965746..........semi finished, forged
3993804..........raw, 5140 steel


BBC ONE PIECE REAR MAIN OIL SEAL
3.76" STROKE used on '91-up Gen.V and Gen. VI 366T, 427T


10114186...427T...forged, 1053 steel
10114187...366T...cast
10114189...427T...cast



TWO PIECE REAR MAIN OIL SEALS
4.00" STROKE used on '70-90 Mark IV 454 or Mark IV 502


3520.......454...forged, cross-drilled, 1053 steel
3521.......454, 502...forged, cross-drilled, 5140 steel
3524.......454...forged
7416.......454, 502...forged, cross-drilled, 1053 steel
7463.......454...forged
336782.....454...cast
353039.....454...cast
353638.....454...
359730.....454...
3962523....454...forged
3963523....454...
3963524....454...forged
3967416....454...forged
3967463....454...forged
3975945....454
3963521....454...forged, cross drilled, 5140 steel
3965753..........semi finished, forged, 5140 steel
3975495....454
3993878....454...forged
10051169...454...forged raw casting


ONE PIECE REAR MAIN OIL SEAL
4.00" STROKE used on '91-up Gen.V and VI 454 or 502

http://www.my69z28.com/id18.html

10114188...454......cast
14097044...454,502..forged, 1053 steel


CHEVY 348-409 "W" MOTOR V-8 Crankshaft Casting Numbers


3732692...348...forged...3.25" stroke
3733223...348...forged...3.25" stroke
3733226...348...forged...3.25" stroke
3741640...348...forged...3.25" stroke
3741642...348...forged...3.25" stroke
3788072...409...forged...3.50" stroke
3795589...409...forged...3.50" stroke
3824553...348...forged...3.25" stroke
3829027...409...forged...3.50" stroke
3837466...409,427 "Z11"...forged...3.65" stroke
3838416...409...forged...3.50" stroke
 
Re: casting numbers
When the Mark IV was installed in production vehicles for the first time in 1965, it carried the Turbo-Jet name on the air cleaner, displaced 396 cubic inches, and was rated at a maximum of 425 horsepower in the Corvettes.

Here’s a quick look at milestones in the big-block’s expanding and contracting history of displacement:

396 cid – introduced in 1965, with 4.094-in. x 3.760-in. bore and stroke (first production Mark IV engine).

427 cid – introduced in 1966, with 4.250-in. x 3.760-in. bore and stroke (aluminum versions used in COPO supercars).

366 cid – introduced in 1968, with 3.935-in. x 3.760-in. bore and stroke (tall-deck; used in truck applications).

402 cid – introduced in 1970, with 4.125-in. x 3.760-in. bore and stroke (advertised as 396 cid).

454 cid – introduced in 1970, with 4.250-in. x 4.000-in. bore and stroke.

502 cid – introduced in 1988, with 4.466-in. x 4.000-in. bore and stroke (Gen V block, originally developed for non-automotive applications; adapted later by Chevrolet Performance).

572 cid – introduced in 2003, with 4.560-in. x 4.375-in. bore and stroke (developed by Chevrolet Performance; no production vehicle applications).
BB HEADs
Casting Number CID Years Valves Comments
10045427 Pontiac/Chevy Aluminum, 91cc chamber Large Rectangle Port
10049875 Pontiac/Chevy Aluminum Small Rectangle port
10051128 454 90-94 2.19/1.88 72cc Bowtie Aluminum Rectangular port 400cc intake
10052902 427 Oval Port Open chamber
10101136 454 91-94 2.06/1.77 Open chamber Oval port
10101140 366/427 91-01 Oval Port Closed chamber
10114156 454 91-01 Oval Port Open chamber
10121033 454 78-88 2.06/1.77 Open chamber Oval port
10141279 454 96-01 Vortec 7400 100cc chambers Oval Port
10487052 366 77-90 Oval Port Open chamber
12352783 454 79-93 2.06/1.77 Open chamber Oval port
12363391 Oval Port Bowtie Aluminum Signature Series fits MKIV GenV GenVI 110cc chamber
12363401 Rectangle Port Bowtie Aluminum Signature Series fits MKIV GenV GenVI 118cc chamber
12558162 496 01 & UP Gen.VII Vortec 8100 8.1L truck
12560241 454 98-01 Vortec 7400 100cc chambers Oval Port
12562932 454/502 91-95 Oval Port truck crate motor 118cc chambers
12562934 502 00 & UP GenVI Marine
14011077 454 89-94 2.19/1.88 118cc Replacement Aluminum Rectangular port 295cc intake
14025175 454 83-93 2.06/1.77 Open chamber Oval port
14044861 454 89-94 2.19/1.88 106cc Bowtie Aluminum Rectangular port 380cc intake
14081044 454 86-90 2.06/1.77 Open chamber Oval port
14081045 454 78-87 Oval Port Open chamber
14081052 366/427/454 85-87 Oval Port Open chamber
14092359 427 86-89 2.06/1.77 Open chamber Oval port
14092360 454 85-89 2.06/1.77 Open chamber Oval port
14096188 454 87-94 2.19/1.88 118cc Replacement Rectangular port 325cc intake
14097088 502 89-date 2.19/1.88 118cc Replacement Rectangular port 325cc intake GEN V
14101398 454 86-90 2.06/1.77 Open chamber Oval port
24502585 Olds/Chevy DRCE 2 Pro Stock aluminum for blocks w/4.900" bore centers
330864 366/427/454 70-81 2.06/1.77 Open chamber Oval port
330865 366/427/454 70-84 2.06/1.77 Open chamber Oval port
330866 366/427 68-78 Oval Port Open chamber
330867 427 68-73 Oval Port Open chamber
336768 427 73-76 Oval Port Open chamber
336781 454 73-85 2.06/1.77 113cc Oval port
343771 366/427/454 68-85 2.06/1.77 Open chamber Oval port
343772 366/427/454 76-84 2.06/1.77 Open chamber Oval port
343783 454 75-78 2.06/1.77 Open chamber Oval port
346236 454 75-87 2.06/1.77 113cc Oval port
346238 454 75-87 2.06/1.77 113cc Oval port
352625 454 70-76 Oval Port Open chamber
353049 454 70-73 2.06/1.77 113cc Oval port
366765 427/454 73-84 2.06/1.77 Open chamber Oval port
3732791 348 58
3758379 348 59-61
3759256 348 58
3767738 348 59-61
3781147 348 60-61 High Perf
3795586 409 61 360HP
3814690 409 62-64 High Perf
3819333 348/409 62-65
3830817 409 63-65 340HP
3837731 409 63 High Perf Z-11
3852583 409 65 400HP
3856206 396 65-66 2.06/1.77 98cc Oval port
3856208 396 65 2.06/1.77 109cc Z-16/L-37 Rectangular port
3856213 366 66-70 2.06/1.77 Closed chamber Oval port
3856260 396 68 Oval Port Closed chamber
3872702 396/427 66 2.06/1.77 98cc Oval port L-34/L-35/L-36
3873858 396/427 66-67 2.06/1.77 109cc L-78/L-72 Rectangular port
3876875 427 66-70 2.06/1.77 Closed chamber Oval port
3904390 396/427 66-67 2.06/1.77 98cc Oval port L-34/L-35/L-36
3904391 396/427 65-67 2.06/1.77 107cc L-78/L-71/L-72 Rectangular port
3904392 427 67 2.19/1.88 106cc L-88/L-89 Aluminum Rectangular port
3904393 366 66-68 2.06/1.77 Closed chamber Oval port
3908952 427 67 Oval Port Open chamber
3909802 396/427 66-67 2.06/1.77 100cc Oval port L-34/L-35/L-36/L-68
3917215 396/427 67-69 2.06/1.77 100cc Oval port L-34/L-35
3917219 366/427 66-70 2.06/1.77 Closed chamber Oval port
3919840 396/427 67-69 2.06/1.77 107cc L-78/L-71/L-72 Rectangular port
3919842 396/427 68-69 2.19/1.88 106cc L-88/L-89 Aluminum Rectangular port
3931063 396/427 69-70 2.06/1.77 100cc Oval port L-34/L-35
3933148 366/396/427 69 2.06/1.77 122cc Oval port
3933149 427 69-70 2.06/1.77 122cc Oval port
3935401 427 68-76 Oval Port Open chamber
3946074 396/454 69-71 2.19/1.88 118cc L-88/ZL-1 Aluminum Rectangular port
3964280 427/454 66-70 2.06/1.77 Closed chamber Oval port
3964290 396/402/427/454 69-70 2.06/1.77 100cc Oval port
3964291 396/402/427/454 69-70 2.19/1.88 108cc L-78/L-71/L-72/LS-6 Rectangular port 325cc intake
3964292 454 70 2.19/1.88 109cc LS-6 Rectangular port
3965198 396 69 2.06/1.77 Open chamber Oval port
3975950 366/427 68-70 2.06/1.77 Closed chamber Oval port
3986133 366/427 70-85 2.06/1.77 Closed chamber Oval port
3986136 366/427 70-84 2.06/1.77 Closed chamber Oval port
3993820 402/454 71 2.06/1.77 113cc Oval port
3994025 454 71 2.19/1.88 118cc LS-6 Rectangular port
3994026 454 71 2.19/1.88 118cc LS-6 Rectangular port
3999241 402/454 72 2.06/1.77 113cc Oval port
473328 366 68-85 2.06/1.77 Open chamber Oval port
6258723 454 71 2.19/1.88 118cc LS-6 Rectangular port
6272292 402/454 71 2.06/1.77 Open chamber Oval port
6272990 454 71-94 2.19/1.88 118cc Replacement Rectangular port 325cc intake

SB HEADs
Casting Number CID Years Valves Comments
10065202 350 82-86 1.94/1.50 76cc
10065203 350 82-86 1.94/1.50 76cc
10065204 350 82-86 1.94/1.50 76cc
10065205 305 82-86 1.84/1.50 58cc
10065206 350 82-86 1.94/1.50 76cc
10065207 305 82-86 1.84/1.50 58cc
10088113 350 86-92 1.94/1.50 58cc Corvette Aluminum
10120928 350 87-94 1.94/1.50 76cc
10125320 350 94-96 2.00/1.55 Gen II LT1 cast iron version, used on "9C1" Police package, Impala SS, Cadillac Fleetwood, Buick Roadmaster reverse flow cooling
10128374 350 92-97 2.00/1.55 Gen II LT1 53 CC angle plug aluminum reverse flow cooling 175/68cc ports
10134363 Bowtie High Port 60 CC 210 ~ 258 CC intake runner angle plug 18 degree or 15 degree valve angles Bare castings
10159550 350 87-94 1.94/1.50 76cc
10159551 305 87-94 1.84/1.50 58cc
10159552 350 87-94 1.94/1.50 76cc
10159553 305 87-94 1.84/1.50 58cc
10185040 Splayed vavle head 45 CC angle plug 240 cc intake runner Bare heads.
10205245 350 93 2.00/1.55 Gen II LT1 angle plug aluminum reverse flow cooling 175/68cc ports
10207643 350 94-97 2.00/1.55 Gen II LT1 angle plug aluminum reverse flow cooling 175/68cc ports
10208890 265 94-96 2.00/1.55 Gen II L99 4.3 Liter V-8, cast iron, reverse flow
10215339 346 97 2.00/1.55 Gen III LS1 aluminum 68cc
10239906 305/350 96-up 1.94/1.50 68cc Vortec
12367713 2.00/1.55 GM Fast burn 62 CC 210 CC intake runner angle plug Vortec and Pre 86 intake design
12480005 346 00 2.125/1.625 Gen III LS1 "GTZ" aluminum 38cc angle plug
12480011 SB2.2 head 48 ~ 54 CC angle plug 284 CC intake runner Bare heads.
12480034 2.02/1.60 Bowtie Phase III 64cc Angle plug 184 cc intake runner
12506450 350 87-94 1.94/1.50 76cc
12509859 305 87-94 1.84/1.50 58cc
12516852 350 87-94 1.94/1.50 76cc
12551561 350 96 2.00/1.55 Gen II LT1 angle plug aluminum reverse flow cooling
12552520 305 97-99 1.84/1.5 Vortec Truck L-35
12554290 350 94-96 2.00/1.55 Gen II LT1 cast iron version used on "9C1" Police package, Impala SS, Cadillac Fleetwood, Buick Roadmaster reverse flow cooling
12555690 350 96 2.00/1.55 Gen II LT-4 55 CC 195 CC intake runner Angle Plug
12555690 350 96 2.00/1.55 Gen II LT-4 55 CC 195 CC intake runner Angle Plug
12556743 325 99 & UP 2.00/1.55 Gen III 5.3L aluminum truck and van
12558059 305 97 1.84/1.5 L-35 Vortec truck
12558062 350 98 1.94/1.5 L-31 Vortec truck 64cc chambers 170cc intake port
12558062 305/350 96-up 1.94/1.50 68cc Vortec
12558806 346 97-98 2.00/1.55 Gen III LS1 aluminum 68cc
12559853 346 99 & UP 2.00/1.55 Gen III LS1 aluminum 68cc
12559895 325 00 & UP 2.00/1.55 Gen III 5.3L aluminum
12564241 346 00 & UP 2.00/1.55 Gen III LS1 aluminum 68cc
12564243 346 02 2.00/1.55 Gen III LS6 aluminum 68cc
12564243 346 2.00/1.55 Gen III LS-6 vette head 65 CC
14008856 267 79-81 1.71/1.50
14010201 305 82-85 1.84/1.50 58cc
14011034 350 80-up 2.02/1.60 64cc Bowtie
14011049 350 82-up 2.02/1.60 64cc Bowtie Aluminum
14014415 267/305 80-85 1.71/1.50 64cc Crack prone
14014416 267/305/350 80-86 1.84/1.50 64cc Crack prone
14019821 350 80-86 1.84/1.50 76cc
14019924 267 79-81 1.71/1.50
14019926 305 80-86 1.84/1.50
14020516 305/350 80-86 1.84/1.50
14020517 350 80-86 1.84/1.50 76cc
14020555 305 81
14020556 350 81
14022206 350 80 1.94/1.50 76cc
14022301 305 80-86 1.84/1.50 58cc
14022601 267/305 79-86 1.72/1.50 1.84/1.50 58cc
14022801 305 80-86 1.72/1.50 58cc
14034806 267 78-82 1.72/1.50
14034807 305 78-82 1.72/1.50
14034808 350 80-86 1.84/1.50 76cc
14034810 350 80-86
14034811 350 80-86
14039121 305 81-86
14039122 305 81-86
14071114 350 80-86
14075381 350 80-86
14079261 350 82-85
14085844 350 80-86
14089119 350 80-86
14096217 350 90-up 1.94/1.50 64cc Crate heads
14101081 305 87-94 1.84/1.50 58cc
14101083 350 88-94 1.94/1.50 64 cc
14102187 305 87-95 1.84/1.50 58cc
14102191 305/350 87-95 1.84/1.50
14102193 305/350 87-95 1.84/1.50
24502559 96-97 Bowtie SB2 1st design"mirror ports" aluminum 196cc port CNC version 280cc port 38cc chamber
25534351C 2.00/1.55 Vortec Bowtie 65 CC 175 cc intake runner
25534371C 2.00/1.55 Vortec Bowtie 65 CC 206 cc intake runner
3238882 350 68-69 1.94/1.50 76cc
3297185 307/327/350 57-67 1.72/1.50
330545 350/400 71-75 2.02/1.60 76cc
330862 400 71-73 1.94/1.50
333881 350 71-76 2.02/1.60 76cc
333882 350/400 70-80 1.94/1.50 76cc
340292 350 73-80 2.02/1.60 64cc Angle plugs turbo' head No heat riser
354434 262/305 75-80 1.72/1.50 60cc
358741 262/305 71--79 1.72/1.50
359944 350 71-79 1.94/1.50 76cc
3636839 265 55 1.72/1.50
3703523 265 55 1.72/1.50 195HP
3713358 265 55-56 1.72/1.50
3713569 265 55-56 1.72/1.50
3725306 265 56 1.72/1.50 210HP Corvette
3731262 265 56 1.72/1.50 Dual Quad Corvette
3731539 283 57-66 1.72/1.50 283HP Corvette
3731544 265/283 55-61 1.72/1.50 Dual Quad Corvette
3731554 265/283 55-63 1.72/1.50
3731556 283 57 1.72/1.50
3731762 265 56 1.72/1.50 Dual Quad Corvette
3737775 283/327 62-67 1.72/1.50
3740997 283 57 1.72/1.50 Dual Quad FI & 4-brl 220-270HP
3743056 283 58 1.72/1.50
3743096 327 62-67 1.72/1.50
3747363 265 57-62 1.72/1.50
3748056 327 62-67 1.72/1.50
3748720 283 57-58 1.72/1.50 Dual Quad FI & 4-brl Corvette
3748770 283 55-62 1.72/1.50 Dual Quad FI & 4-brl Corvette
3748772 283 57-62 1.72/1.50 Dual Quad FI & 4-brl Corvette
3755537 283 57-62 1.72/1.50
3755538 283 59 1.72/1.50 250-290HP FI Corvette
3755539 283 58-62 1.72/1.50
3755549 283 57-62 1.72/1.50
3755550 283 57-62 1.72/1.50 Dual Quad FI & 4-brl Corvette
3755585 327 62-67 1.72/1.50
3755896 283 62-64 1.72/1.50
3760116 283 59 1.72/1.50 Dual Quad FI & 4-brl Corvette
376445 350 80-84 1.72/1.50
376450 262/305 75-76 1.72/1.50
376495 350 Jun-79 1.94/1.50 76cc
3767460 265/283/327 55-67 1.72/1.50 Car & Truck Corvette
3767462 327 62-67 1.72/1.50
3767465 283 60-61 1.72/1.50 Dual Quad FI & 4-brl Corvette
3767754 283 60-61 1.72/1.50
3767792 283 60-67 1.72/1.50
3770126 327/350 67-70 1.94/1.50
3773012 265 55 1.72/1.50
3774634 327 64-67 1.72/1.50
3774682 283/327 60-67 1.72/1.50
3774684 283/327 57-67 1.72/1.50
3774690 283 58 1.72/1.50 FI Corvette
3774692 283 58-64 1.72/1.50 Dual Quad FI & 4-brl Corvette
3782461 302/327/350 61-70 1.94/1.50 Dual Quad FI & 4-brl Corvette 2.02/1.60 Doubble humps 64cc
3782462 327 67 1.94/1.50 Corvette 2.02/1.60
3792563 327 65-67
3795896 283/307/327 58-72 1.72/1.50 60cc
3796896 283 64-67 1.72/1.50 60cc Chevy II
3798996 327 63-67
3814462 350 67 1.94/1.50
3814480 283/327 60-67 1.72/1.50
3814482 327 62-67 1.72/1.50
3817680 283 59 1.72/1.50 FI 4-brl
3817681 327 62-67 1.72/1.50
3817682 283 61-62 1.72/1.50
3836839 265 55 1.72/1.50
3836842 283/327 57-67 1.72/1.50
3836924 283 63-64 1.72/1.50
3836942 283 58-62 1.72/1.50
3837063 283 58-62 1.72/1.50
3837064 265/283 56-62 1.72/1.50
3837065 265 55-56 1.72/1.50
3837775 283/327 62-67 1.72/1.50
383882 400 71-73
3848720 283 57-58 1.72/1.50
3849820 327 65 1.72/1.50
3854520 283/327 62-67 1.72/1.50
3867802 283 57-60 1.72/1.50 FI Corvette
3873064 265 56-57 1.72/1.50
3876487 350 71-73 1.94/1.50 76cc
3876775 283/327 57-67 1.72/1.50 76cc
3878775 327 64-67 1.72/1.50
3884520 283/327 60-67 1.72/1.50 60cc
3890462 302/327/350 62-68 1.94/1.50 2.02/1.60 64cc Doubble humps
3891462 302/327/350 62-67 1.94/1.50 2.02/1.60 64cc
3891492 327 64-67 1.94/1.50
3911011 327 68
3911032 307/327 68-70 1.72/1.50 70cc
3912264 283 58-62 1.72/1.50
3912265 283 63-64 1.72/1.50
3912291 302/327/350 68-70 1.94/1.50 2.02/1.60 64ccDoubble humps
3912311 350 67 1.94/1.50
3912313 327 65-73 1.72/1.50
3917264 302 67 2.02/1.60 64cc Z-28
3917290 327 68-70 1.72/1.50
3917291 302/327/350 62-69 1.94/1.50 2.02/1.60 64cc Doubble humps
3917292 327 67-68 1.94/1.50
3917293 307/327 68-69 1.72/1.50 76cc
3921175 327 66 1.94/1.50
3923441 350 67-76 1.94/1.50 76cc
3927185 307/327/350 68-79 1.72/1.50 70cc
3927186 302/327/350 68-72 1.94/1.50 2.02/1.60 64cc Doubble humps Bolt holes
3927187 302/350 69-70 2.02/1.60 64cc Corvette
3927188 307/327/350 69 1.72/1.50 76cc
3928454 307 68 1.72/1.50
3928455 302/327 68 2.02/1.60 64cc 325 & 350HP
3928494 327 68 2.02/1.60 64cc 350HP 4-brl
3928495 327 68 1.72/1.50
3931633 307 68-73 1.72/1.50
3931635 350 68-76 1.94/1.50 76cc
3931637 327 68-69
3931638 327 68 1.72/1.50
3931639 302 68 2.02/1.60 64cc
3932441 327/350 67-79 1.94/1.50 76cc
3932454 307/350 68-799 1.72/1.50 76cc
3933148 350 68-73 76cc
3941174 327 68 1.72/1.50
3946812 350 69 1.72/1.50
3946813 350 69-79 76cc
3947014 350 68-70
3947040 302/327/350 68-70 1.94/1.50 2.02/1.60 64cc
3947041 302/327/350 68-79 1.94/1.50 2.02/1.60 64cc
3951598 400 70-71 1.94/1.50 76cc
3961598 400 70-76 1.94/1.50 76cc
3964286 350 68-77 1.94/1.50 76cc
3970126 327/350 67-79 1.72/1.50
3973195 400 71-73 1.94/1.50 76cc
3973414 327/350 64-70 2.02/1.60 64cc Z-28 LT-1 corvette
3973487 350 68-79 1.94/1.50 2.02/1.60 76cc
3973487X 350 68-73 1.94/1.50 2.02/1.60 76cc X cast 10cc's
3973493 400 70-76 1.94/1.50 76cc
3986316 350 71-72 2.02/1.60 76cc
3986330 350 69-79 1.94/1.50 76cc
3986339 307/350 68-79 1.72/1.50 76cc
3986388 350 68-79 1.72/1.50 76cc
3990941 307/350 68-82
3991492 327/350 68-73 1.94/1.50 2.02/1.60 64cc Angle plug
399380 400 70-73 76cc
3997417 307 71 1.72/1.50
3998916 350/400 72-75 2.02/1.60 76cc
3998920 350 72-75 1.94/1.50 76cc
3998991 307/350 68-79 1.72/1.50 76cc
3998993 307/350 68-79 1.71/1.50 1.94/1.50 76cc
3998997 350/400 71-73 1.94/1.50 76cc
426424 305/350/400 72-82 1.72/1.50
458624 350 69-84 1.94/1.50 76cc
460703 350 78-80 1.94/1.50 76cc
462614 305/350 77-79 1.72/1.50
462624 350 76-87 1.94/1.50 2.02/1.60 76cc Crack prone
464033 350 76-86 1.94/1.50 76cc
464036 350 76-86 1.94/1.50 76cc
468642 350/400 75-84 1.72/1.50
471513 267 79-81 1.72/1.50
472424 305 76-79 1.72/1.50
474213 305 78-82 1.72/1.50
474214 350 78-82 1.94/1.50 76cc
475590 400 78-82 1.94/1.50 76cc
517513 267 79-81 1.72/1.50
6259515 350 73
6260855 350 73-75 1.94/1.50 76cc
6260856 350 73-76 1.94/1.50 76cc
6272070 350 73
 
Last edited by a moderator:
Re: casting numbers decoding

http://sprektech.com/nova/engineinfo6.html

http://www.nastyz28.com/chevy-engine-code-stampings.php

http://www.nastyz28.com/sbchevy/sblock.php

http://outintheshop.com/faq/casting/castings2.html

http://gearheadgeek.com/ghgj/index.php/ ... -s?start=1

http://www.nastyz28.com/sbcmenu.php#chi ... ose_button

http://enthusiast.yearone.com/vehicle-i ... -decoding/

http://www.thecamaro.com/Decoding/Chevy ... php?&pag=4

http://forums.corvetteforum.com/vindecoder.php (vin number decoder)

http://www.yearone.com/yodnn/tech/vehic ... fault.aspx

http://en.wikibooks.org/wiki/Vehicle_Id ... /VIN_Codes

http://muscle-car-resto.com/block/


Chevy Intake Manifolds
Search intake number

Use these numbers to identify your stock Chevy intake.

Casting Number
CID
Years
Type
Comments
10051103
350
1990
4-Brl
Aluminum Bowtie Single plane
10066013
350
87-89
TPI
Corvette Base MASS air 9th injector style Aluminum heads (86 and older)
10077151
305/350
90-92
TPI
Plenum Speed density type
10086016
305/350
90-92
TPI
Base Speed density type (87 & UP intake bolt pattern)
10108630
350
92-97
MFI
LT-1
12550631
350
96
MFI
LT-4 Power coated red
12552138
265
93-96
MFI
L-99 (lt-1 style 4.3L V-8)
14007374
305
79-82
2-Brl
Aluminum
14014432
350
1981
4-Brl
Aluminum Quadrajet Z-28
14057053
305/350
80-88
4-Brl
Aluminum Quadrajet
14081006
350
87-89
TPI
Corvette Plenum MASS air 9th injector style
14096242
350
1990
4-Brl
Holley High rise Bowtie
340261
350/400
74-76
4-Brl
Quadrajet
340266
305/350/400
73-82
2-Brl

340281
305/350
82-85
4-Brl
Quadrajet
346249
305/350/400
75-77
4-Brl
Quadrajet
346250
305/350
76-82
4-Brl
Quadrajet
346260
267/305/350
73-77
2-Brl

355943
262
1975
2-Brl

3704790
265
1955
2-Brl

3711348
265
1955
4-Brl
WCFB
3728725
265
1956
Dual Quad
Aluminum
3731394
283
56-57
Dual Quad
Aluminum
3731398
283
1957
4-Brl
WCFB
3732690
265/283
56-57
2-Brl

3732880
265/283
56-57
2-Brl

3735444
265
1956
2-Brl

3735448
265
1956
4-Brl
WCFB
373598
305
78-81
2-Brl
Aluminum
3737109
265
1956
4-Brl
WCFB
3739653
283
58-61
Dual Quad
Aluminum
3741193
283
1957
Fuel Injection
Aluminum
3746826
265/283
56-63
2-Brl

3746829
283/327
58-64
4-Brl
WCFB
3753809
283
59-62
2-Brl

3783244
327
62-63
4-Brl
WCFB
3794129
327
1963
4-Brl
Aluminum
3795397
327
1962
4-Brl
Aluminum
3799349
327
62-64
4-Brl
Carter AFB
3826810
327
63-65
Fuel Injection
Aluminum
3837109
265/283
56-57
4-Brl
WCFB
3840905
283
64-65
2-Brl

3844457
283/327
64-65
4-Brl
WCFB
3844459
327
63-65
4-Brl
Carter AFB
3844461
327
64-65
4-Brl
Aluminum
3866922
283/327
62-65
4-Brl
WCFB
3872783
283/327
66-67
4-Brl
Holley
3872788
238/327
66-67
4-Brl
Holley
3875954
327
1966
4-Brl
Carter AFB
3877652
283/327
65-67
2-Brl

3882858
283
1966
4-Brl
Carter AFB
3890490
327
66-67
4-Brl
Aluminum
3905393
327/350
1967
4-Brl
Quadrajet
3910601
327
67-68
2-Brl

3916313
307/327/350/400
69-70
2-Brl

3917610
302
67-68
4-Brl
Aluminum
3919801
307/327
1968
2-Brl

3919803
327/350
67-68
4-Brl
Quadrajet
3927183
307/327
69-70
2-Brl

3927184
350
1969
4-Brl
Quadrajet
3932472
302/350
69-70
4-Brl
Aluminum
3941126
302
68-69
Cross Ram
Aluminum base
3941130
302
68-69
Cross Ram
Aluminum top plate
3958622
307/327
69-70
2-Brl

3958626
350
69-70
2-Brl

3959594
350
71-72
4-Brl
Aluminum
3965577
350
1970
4-Brl
Quadrajet
3972110
350
1970
4-Brl
Aluminum
3972114
350
70-72
4-Brl
Aluminum
3972116
350
1970
4-Brl
Aluminum Service replacement part
3972361
350
1971
4-Brl
Aluminum
3973465
307
69-71
2-Brl

3973467
350/400
1971
2-Brl

3973469
350
1971
4-Brl
Quadrajet
3987361
350
69-70
4-Brl
Quadrajet
3990948
350
1971
2-Brl

3991004
350
1973
4-Brl
Quadrajet
3991005
307
1971
2-Brl

3997770
350
1973
4-Brl
Quadrajet
3997771
350
1973
4-Brl
Quadrajet
3997772
350
1973
2-Brl

3997773
350/400
1973
2-Brl

458520
305/350
77-82
4-Brl
Quadrajet
458520
305/350
82-87
4-Brl
Aluminum
6262928
307
1972
2-Brl

6262930
350
1972
4-Brl
Quadrajet
6262936
307
1972
2-Brl

6263751
350
1972
4-Brl
Quadrajet
6263752
350/400
1972
2-Brl

626932
350
71-72
4-Brl
Quadrajet
6271060
307
1973
2-Brl

6271061
307
1973
2-Brl

7014360
283
1957
Rochester FI

7014520
283
1957
Rochester FI

7014800
283
57-58
Rochester FI

7014800R
283
1985
Rochester FI

7014900
283
1958
Rochester FI

7014900R
283
1958-59
Rochester FI

7014960
283
1958
Rochester FI

7017200
283
59-61
Rochester FI

7017250
283
59-61
Rochester FI

7017300
283
59-60
Rochester FI

7017300R
283
1959
Rochester FI

7017310
283
60-61
Rochester FI

7017320
283
1960
Rochester FI

7017355
327
1962
Rochester FI

7017360
327
1962
Rochester FI

7017375
327
1963
Rochester FI

7017375R
327
1964
Rochester FI

7017380
327
64-65
Rochester FI

336789
454
74
Q-jet
Oval port
346242
454
75
Q-jet
Oval port
353015
454
73
Q-jet
Oval port
3732757
348
58-62
4-Brl

3749948
348
58-61
Three duce

3753748
348
60-61
Dual quad
Aluminum
3760436
348
58-59
4-Brl

3767579
348/409
61
4-Brl

3770084
348
58-59
4-Brl

3772265
348
60-61
4-Brl

3780540
348
58-59
4-Brl
Aluminum
3797775
348
59-60
4-Brl

3797776
409
61
4-Brl

3813678
409
62-63
4-Brl

3814881
409
62-64
Dual quad
Aluminum
3830623
409
63
Dual quad
Aluminum Z-11
3830831
409
63
4-Brl
340HP
3844463
409
64-65
4-Brl
400HP
3844464
409
64-65
4-Brl
340HP
3844472
348/409
62-65
4-Brl

3856289
396
65-66
Q-jet
Oval port L-35
3866948
396/427
66-67
Holley
Oval port L-34/L-35
3866963
396
65
Holley
Rectangular port Aluminum L-37
3883948
396/427
66-68
Q-jet
Oval port L-35/L-36
3885069
396/427
66-68
Holley
Rectangular port Aluminum L-78/L-72
3886093
427
67
Holley
Rectangular port Aluminum L-88
3894374
427
67
Three duce
Rectangular port Aluminum L-71
3894382
427
67
Three duce
Oval port Aluminum L-68
3919849
427
68
Q-jet
Oval port Aluminum L-36
3919850
427
68
Three duce
Oval port Aluminum L-68
3919852
427
68
Three duce
Rectangular port Aluminum L-71
3919878
396/427
68
Holley
Rectangular port Aluminum L-78/L-72
3931067
396/427
69
Q-jet
Oval port L-35/L-36
3933163
396/427
68-69
Holley
Rectangular port Aluminum L-78/L-89 COPO
3933198
427
68-69
Holley
Rectangular port Aluminum L-88/ZL-1
3937793
427
68
Q-jet
Oval port Aluminum L-36
3937795
427
69
Three duce
Oval port Aluminum L-68
3937797
427
69
Three duce
Rectangular port Aluminum L-71
393841
454
73-75
Q-jet
Oval port
3947801
427
69
Q-jet
Oval port Aluminum L-36
3952900
396
69
2-Brl
Oval port
3955287
402/454
70-71
Q-jet
Oval port LS-3/LS-5
3963569
396/402/454
70-71
Holley
Rectangular port Aluminum Low rise L-78/L-89/LS-6
3967474
454
71
Holley
Rectangular port Aluminum
6263753
402/454
72
Q-jet
Oval port LS-3/LS-5
6269318
454
72
Holley
Rectangular port Aluminum


Back to FAQ Home
 
Last edited by a moderator:
Re: casting numbers

http://www.chevellestuff.com/qd/intake_ ... y_year.htm

http://www.nastyz28.com/sbcmenu.php#chi ... ose_button

http://outintheshop.com/faq/casting/intake_man.html

Manifold
Number Year Engine Horsepower Notes
3844461 1964
1965 327
327 350
350 Aluminum with Holley 4-bbl. Riveted oil splash shield.
3840905 1964
1965 283
283 195
195 Cast iron with Rochester 2-bbl. Riveted oil splash shield.
3844457 1964 283
327 220
250 Cast iron with Carter WCFB/Rochester. Riveted oil splash shield.
3844459 1964
1965 327
327 300
300 Cast iron with Carter AFB. Riveted oil splash shield.
3866963 1965 396 375 Aluminum with Holley 4-bbl. No oil splash shield.
3866922 1965 283
327 220
250 Cast iron with Carter/Rochester 4-bbl.
3856289 1966 396 325 w/A.I.R. Cast iron with Rochester and A.I.R.
3866948 1966
1966
1967 396
396
396 325 w/o A.I.R.
360
350 Cast iron with Holley 4-bbl. No oil splash shield. "Holley" cast into top of manifold.
3872783 1966 327 275 w/o A.I.R. Cast iron with Holley 4-bbl.
3875954 1966 327 275 w/A.I.R. Cast iron with Rochester 4-bbl.
3877652 1966 283 195 Cast iron with Rochester 2-bbl.
3882858 1966 283 220 Cast iron all 4-bbl. Used extensively as service replacement.
3883948 1966
1967
1968 396
396
396 325 w/A.I.R.
325
325, 350 Cast iron with Rochester 4-bbl. No oil splash shield
3885069 1966
1967
1968 396
396
396 375
375
375 Aluminum with Holley 4-bbl
Three designs, a 3-hole closed plenum, a 2-hole closed plenum and an open plenum. The 3-hole was used from August of 1965 through June of 1967. The 2-hole plenum was used for the 1968 model year and the open plenum was used on Corvette only. No oil splash shield. First with divorced choke design.
3890490 1966
1967 327
327 350
325 Aluminum with Holley 4-bbl. Chevrolet does report any 327/350 engines installed in 1966 Chevelles.
3905393 1967 327 275 Cast iron with Rochester 4-bbl.
3919878 1967
1968 396
396 375
375 Aluminum with Holley 4-bbl. Unverified if OE installed from late 1967 through early 1968. This manifold may have been used extensively as a service replacement. No oil splash shield
3919801 1968 307 200 Cast iron with Rochester 2-bbl. Riveted oil splash shield.
3919803 1968 327 250, 275, 325 Cast iron with Rochester 2-bbl. Riveted oil splash shield. Temperature sending hole is plugged
3916313 1969
1970 350
350 250
250 Cast iron with Rochester 2-bbl. No oil splash shield.
3933163 1969 396 375 Aluminum with Holley 4-bbl. Possible late 1968 application. Identical to #3885069 except addition of heater outlet boss on upper right thermostat passage. No oil splash shield.
3927183 1969
1970 307
307 200
200 Cast iron with Rochester 2-bbl. Oil fill tube and water by-pass boss eliminated. Heater nipple boss drilled and tapped on right thermostat passage.
3927184 1969 350 255, 300 Cast iron with Rochester 4-bbl.
3931067 1969 396 325, 350 Cast iron with Rochester 4-bbl. Heater nipple boss drilled and tapped on right thermostat passage.
3963569 1970 402
454 375
450 Aluminum with Holley 4-bbl. Low rise intake. Riveted oil splash shield.
3955287 1970
1971 402, 454
402, 454 330, 350, 360
300, 365 Cast iron with Rochester 4-bbl. Low rise intake. No oil splash shield.
3965577 1970 350 300 Cast iron with Rochester 4-bbl. Oil splash shield.
3973465 1971 307 200 Cast iron with Rochester 2-bbl. Heater outlet boss on upper right thermostat passage. Oil splash shield.
3973467 1971 350 245 Cast iron with Rochester 2-bbl. Heater outlet boss on upper right thermostat passage. Oil tube boss eliminated. Oil splash shield.
3973469 1971 350 270 Cast iron with Rochester 4-bbl. Heater outlet boss on upper right thermostat passage. Oil splash shield.
6262936 1972 307 130 Cast iron with Rochester 2-bbl. Heater outlet boss on upper right thermostat passage. Oil tube boss eliminated. Oil splash shield. Intake runners have numbers cast for their port.
6263751 1972 350 175 Cast iron with Rochester 4-bbl. Heater outlet boss on upper right thermostat passage. Oil tube boss eliminated. Oil splash shield. Intake runners have numbers cast for their port.
6263752 1972 350 165 Cast iron with Rochester 2-bbl. Heater outlet boss on upper right thermostat passage. Oil tube boss eliminated. Oil splash shield. Two accessory bosses between #5 and #5 runners.

6263753 1972 402, 454 240, 270 Cast iron with Rochester 4-bbl. Intake runners have numbers cast for their port. No oil splash shield.

bbcint.jpg

castman1.jpg


castman2.jpg


castman3.jpg

castman4.jpg


http://repairs.willcoxcorvette.com/1953-1962-corvette-intake-manifold-casting-numbers/


Search

1953-1962 Corvette Intake Manifold Casting Numbers
1953-1955
Number Metal Engine
3707064 Aluminum Six-Cylinder 53-55
3711348 Cast Iron 1955 V-8

Note: Original 1953-55 six-cylinder intake manifold carries no casting number; later service replacement manifold carries the casting number listed and a Winter’s Foundry “snowflake” vendor’s logo.

1956
Number Metal Engine
3735448 Cast Iron 210 Horsepower
3837109 Cast Iron 210 Horsepower (possible usage)
3728725 Aluminum 1st Design, 255 Horsepower
3731394 Aluminum 2nd Design, 255 & 240 Horsepower
1957
Number Metal Engine
3731398 Cast Iron 220 Horsepower
3739653 Aluminum 245 & 270 Horsepower
1958-1961
Number Metal Engine
3746829 Cast Iron Single Four-Barrel Carburetor
3739653 Aluminum Dual Four-Barrel Carburetor
1962
Number Metal Engine
3783244 Cast Iron 250 Horsepower
3799349 Aluminum 300 Horsepower
3795397 Aluminum 340 Horsepower
Category: Codes and Casting
Tags: 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962
http://www.corvetteactioncenter.com...fold-casting-numbers-and-date-codes-1179.html

earlycv.png
 
Last edited by a moderator:
Re: casting numbers

bbcint1.jpg

1967 Corvette Original 3894382 Tri power oval port intake

bbcint2.jpg

3947801 Corvette intake manifold bbc big block Chevy aluminum low
bbcint2a.jpg



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1968 - 1982 Corvette Specification Guide(1968-1982 Intake Manifold Casting Numbers)



1968 Intake Manifold Casting Numbers

3919803 Cast Iron 300 & 350 Horsepower 327 Engines
3919849 Aluminum 390 Horsepower 427 Engine
3919850 Aluminum Early 400 Horsepower 427 Engine
3937795 Aluminum Late 400 Horsepower 427 Engine
3885069 Aluminum L88 (possible)
3933198 Aluminum L88 (possible)
3919852 Aluminum Early 435 Horsepower 427 Engine
3937797 Aluminum Late 435 Horsepower 427 Engine

1969 Intake Manifold Casting Numbers

3927184 Cast Iron 300 & 350 Horsepower 350 Engines
3947801 Aluminum 390 Horsepower 427 Engine
3937795 Aluminum 400 Horsepower 427 Engine
3937797 Aluminum 435 Horsepower 427 Engine
3933198 Aluminum 435 Horsepower & ZL1 427 Engines

1970 Intake Manifold Casting Numbers

3965577 Cast Iron 300 & 350 Horsepower 350 Engines
3972110 Aluminum 370 Horsepower LT1 350 Engine
3955287 Aluminum 390 Horsepower 454 Engine
3969802 Aluminum 390 Horsepower 454 Engine
1971 Intake Manifold Casting Numbers

3973469 Cast Iron 270 Horsepower 350 Engine
3959594 Aluminum 330 Horsepower LT1 350 Engine
3955287 Cast Iron 365 Horsepower LS5 454 Engine
3967474 Aluminum 425 Horsepower LS6 454 Engine
3963569 Aluminum 425 Horsepower LS6 454 Engine
1972 Intake Manifold Casting Numbers

6263751 Cast Iron 200 Horsepower 350 Engine
3959594 Aluminum 255 Horsepower LT1 350 Engine
6263753 Cast Iron 270 Horsepower LS5 454 Engine
1973 Intake Manifold Casting Numbers

3997770 Cast Iron 190 Horsepower 350 L48 Base Engine
3997771 Cast Iron 190 Horsepower 350 L48 Base Engine
3997771 Cast Iron 250 Horsepower 350 L82 Engine
353015 Cast Iron 275 Horsepower 454 LS4 Engine
1974 Intake Manifold Casting Numbers

340261 Cast Iron 350 Cubic-Inch L48 & L82 Engines
353015 Cast Iron 270 Horsepower 454 LS4 Engine
336789 Cast Iron 270 Horsepower 454 454 Engine
1975 Intake Manifold Casting Numbers

346249 Cast Iron 350 Cubic-Inch L48 & L82 Engines
1976 Intake Manifold Casting Numbers

346249 Cast Iron 350 Cubic-Inch L48 & L82 Engines
1977 Intake Manifold Casting Numbers

346249 Cast Iron 350 Cubic-Inch L48 & L82 Engines
1978 Intake Manifold Casting Numbers

346249 Cast Iron L48 Engine
458520 Aluminum L82 Engine
1979 Intake Manifold Casting Numbers

14007376 Cast Iron L48 Engine
14014433 Cast Iron Late Production L48 Engine
458520 Aluminum Early Production L82 Engine
14007378 Aluminum L82 Engine
1980 Intake Manifold Casting Numbers

14014432 Aluminum L48, L82 & LG4 Engines
1981 Intake Manifold Casting Numbers

14033058 Aluminum 190 Horsepower L81 Engine
1982 Intake Manifold Casting Numbers

14031372 Aluminum 200 Horsepower L83 Engine

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chevint2.png

chevint3.png

chevint4.png

chevint5.png

chevint6.png
 
Last edited by a moderator:
Re: casting numbers

http://www.brodix.com/numbers/numbersearch.php

BRODIX has a AUTO cylinder head casting number search feature


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1968 - 1982 Corvette Specification Guide(1968-1982 Cylinder Head Casting Numbers)



1968 Cylinder Head Casting Numbers

3917291
300, 350 Horsepower 327 Cubic-Inch Engines

3917292
350 Horsepower 327 Cubic-Inch Engine

3917215
390 & 400 Horsepower 427 Cubic-Inch Engines

3919840
435 Horsepower 427 Cubic-Inch Engine (Cast Iron)

3919842 L88 & L89 (Aluminum)


1969 Cylinder Head Casting Numbers

3927186
300 & 350 Horsepower 350 Cubic-Inch Engines

3927187
350 Horsepower 350 Cubic-Inch Engine

3947041
300 Horsepower 350 Cubic-Inch Engine

3931063
390 & 400 Horsepower 427 Cubic-Inch Engines

3919840
435 Horsepower 427 Cubic-Inch Engine (Cast Iron)

3919842 L89 (Aluminum)
3946074 L88 & ZL1 (Aluminum)


1970 Cylinder Head Casting Numbers

3927186
300, 350 & 370 Horsepower 350 Cubic-Inch Engines

3927187
350 Horsepower 350 Cubic-Inch Engine

3973414
370 Horsepower 350 Cubic-Inch Engine

3964290
390 Horsepower 454 Cubic-Inch Engine

3964291*
460 Horsepower LS7 Engine



*The LS7 engine was not produced for retail sale.

1971 Cylinder Head Casting Numbers

3973487
270 & 330 Horsepower 350 Cubic-Inch Engines

3993820
365 Horsepower 454 Cubic-Inch Engine

3994026
425 Horsepower 454 Cubic-Inch LS6 Engine (unverified)

3946074
425 Horsepower 454 Cubic-Inch LS6 Engine




1972 Cylinder Head Casting Numbers


3973487(X)
200 & 255 Horsepower 350 Cubic-Inch Engines

3998993
200 Horsepower 350 Cubic-Inch Engine (unverified)

3998916
255 Horsepower 350 Cubic-Inch Engine (unverified)

3999241
270 Horsepower 454 Cubic-Inch Engine

*Note: (X) indicates an "X" casting foundry proof mark will appear after the seven-digit casting number on later 1972 base engine and LT1 3973487 cylinder heads.



1973 Cylinder Head Casting Numbers

3998993, 333881, 333882
L48 350 Cubic-Inch Base Engine

330545
L82 350 Cubic-Inch Optional Engine

353049
LS4 454 Cubic-Inch Optional Engine



1974 Cylinder Head Casting Numbers

333881, 333882
L48 350 Cubic-Inch Base Engine

333882
L82 350 Cubic-Inch Optional Engine

336781
LS4 454 Cubic-Inch Optional Engine




1975 & 1976 Cylinder Head Casting Numbers

333882
All 350 Cubic-Inch Engines



1977 Cylinder Head Casting Numbers

333882, 376450
L48 350 Cubic-Inch Base Engine

333882
L82 350 Cubic-Inch Optional Engine



1978 & 1982 Cylinder Head Casting Numbers

462624
All 350 Cubic-Inch Engines

14014416
1980 305 Cubic-Inch Optional Engines (California)


pixel_trans.gif

1968 - 1982 Corvette Specification Guide(1968-1982 Cylinder Head Casting Numbers)



1968 Cylinder Head Casting Numbers

3917291
300, 350 Horsepower 327 Cubic-Inch Engines

3917292
350 Horsepower 327 Cubic-Inch Engine

3917215
390 & 400 Horsepower 427 Cubic-Inch Engines

3919840
435 Horsepower 427 Cubic-Inch Engine (Cast Iron)

3919842 L88 & L89 (Aluminum)


1969 Cylinder Head Casting Numbers

3927186
300 & 350 Horsepower 350 Cubic-Inch Engines

3927187
350 Horsepower 350 Cubic-Inch Engine

3947041
300 Horsepower 350 Cubic-Inch Engine

3931063
390 & 400 Horsepower 427 Cubic-Inch Engines

3919840
435 Horsepower 427 Cubic-Inch Engine (Cast Iron)

3919842 L89 (Aluminum)
3946074 L88 & ZL1 (Aluminum)


1970 Cylinder Head Casting Numbers

3927186
300, 350 & 370 Horsepower 350 Cubic-Inch Engines

3927187
350 Horsepower 350 Cubic-Inch Engine

3973414
370 Horsepower 350 Cubic-Inch Engine

3964290
390 Horsepower 454 Cubic-Inch Engine

3964291*
460 Horsepower LS7 Engine



*The LS7 engine was not produced for retail sale.

1971 Cylinder Head Casting Numbers

3973487
270 & 330 Horsepower 350 Cubic-Inch Engines

3993820
365 Horsepower 454 Cubic-Inch Engine

3994026
425 Horsepower 454 Cubic-Inch LS6 Engine (unverified)

3946074
425 Horsepower 454 Cubic-Inch LS6 Engine




1972 Cylinder Head Casting Numbers


3973487(X)
200 & 255 Horsepower 350 Cubic-Inch Engines

3998993
200 Horsepower 350 Cubic-Inch Engine (unverified)

3998916
255 Horsepower 350 Cubic-Inch Engine (unverified)

3999241
270 Horsepower 454 Cubic-Inch Engine

*Note: (X) indicates an "X" casting foundry proof mark will appear after the seven-digit casting number on later 1972 base engine and LT1 3973487 cylinder heads.



1973 Cylinder Head Casting Numbers

3998993, 333881, 333882
L48 350 Cubic-Inch Base Engine

330545
L82 350 Cubic-Inch Optional Engine

353049
LS4 454 Cubic-Inch Optional Engine



1974 Cylinder Head Casting Numbers

333881, 333882
L48 350 Cubic-Inch Base Engine

333882
L82 350 Cubic-Inch Optional Engine

336781
LS4 454 Cubic-Inch Optional Engine




1975 & 1976 Cylinder Head Casting Numbers

333882
All 350 Cubic-Inch Engines



1977 Cylinder Head Casting Numbers

333882, 376450
L48 350 Cubic-Inch Base Engine

333882
L82 350 Cubic-Inch Optional Engine



1978 & 1982 Cylinder Head Casting Numbers

462624
All 350 Cubic-Inch Engines

14014416
1980 305 Cubic-Inch Optional Engines (California)



Corvette Cylinder Head Casting Information






 
Last edited by a moderator:
Re: casting numbers

Chevy V-8 Small and Big Block Crankshaft Casting Numbers and Data

http://www.thecamaro.com/Decoding/Chevy ... php?&pag=4

http://www.1968ss.com/BBCheadnumbers.asp

http://www.teufert.net/bbchevy/bbhead.htm

http://www.thecamaro.com/Decoding/Chevy ... ecoder.php

http://sprektech.com/nova/engineinfo6.html

http://gearheadgeek.com/ghgj/index.php/ ... -s?start=1

http://chevellestuff.net/qd/index.htm

http://chevyvindecoder.com/Chevrolet/ch ... coded.aspx

http://myvindecoder.com/chevrolet-vin-decoder/

There is a lot of misinformation on the internet about these numbers. We have taken the time to verify the data as much as possible. There still may be errors. Please lets us know if you find one.
Small Blocks - Two Piece Main Seal
Number C.I.D. Type Journal Stroke Description
1130 327 Forged Medium 3.25
1178 302 Forged Medium 3.00
1181 305/350 Cast Medium 3.48
1182 350 Forged Medium 3.48
2680 327 Forged Small 3.25
2690 350 Forged Medium 3.48
3279 302 Forged Medium 3.00
3474 283 Forged Small 3.00 Military Tank
4577 327 Forged Small 3.25
4672 327 Forged Medium 3.25
310514 350 Cast Medium 3.48
330550 350 Cast Medium 3.48
354431 262 Cast Medium 3.10
3727449 283 Forged Small 3.00
3729449 265 Forged Small 3.00
3734627 327 Forged Small 3.25
3735236 265,283 Forged Small 3.00
3735263 283 Forged Small 3.00
3782680 327 Forged Small 3.25
3814671 327 Forged Small 3.25
3815822 265,283,302 Forged Small 3.00
3835236 283 Forged Small 3.00
3836266 283 Forged Small 3.00
3848847 283 Forged,Cast Small 3.00
3849847 283 Forged Small 3.00
3876764 283 Forged,Cast Small 3.00
3876768 283 Forged Small 3.00
3884577 327 Forged Small 3.25
3892690 350 Forged Medium 3.48
3911001 307,327 Cast Medium 3.25
3911011 307,327 Cast Medium 3.25
3914672 327 Forged Medium 3.25
3923279 302 Forged Medium 3.00
3932442 267,305,350 Cast Medium 3.48
3941174 307,327 Cast Medium 3.25
3941178 302 Forged Medium 3.00
3941182 350 Forged Medium 3.48
3941188 350 Forged Medium 3.48
3949847 283 Forged,Cast Small 3.00
3951130 327 Forged Medium 3.25
3951529 400 Cast Large 3.75

Number C.I.D. Type Journal Stroke Description
10106122 350 Forged Large,2.76 3.66 ZR1,LT5,DOHC
10168568 265 Cast Medium 3.00
12552215 364 Cast Medium 3.62 Gen. III,6.0L
12552216 325,350,364 Cast Medium 3.62 Gen. III 5.7L LS1,5.3L,6.0L
12553312 293 Cast Medium 3.27 Gen. III,4.8L
12553482 293 Cast Medium 3.27 Gen. III,4.8L
14088526 305,350 Cast Medium 3.48
14088532 350 Forged Medium 3.48
14088535 305,350 Cast Medium 3.48
14088552 350 Forged Medium 3.48

Big Blocks - 3.76 Stroke, Two Piece Main Seal

1965-90 Mark IV 366T,396,402,427,427T
Number C.I.D. Type Description
6223 396,402,427 Forged 1053 Steel
7115 396,402,427 Forged Nitrided,Cross-Drilled,5140 Steel
3804816 396,402,427 Cast
3856223 396 Forged
3863114 402
3863144 396,402
3874874 396,402
3879621 427 Forged
3882841 396 Forged Nitrided,Cross-Drilled
3882842 427 Forged Nitrided,Cross-Drilled
3882847
3882848
3882849 427 Forged
3887114 396 Forged Nitrided,5140 Steel
3904815 396,402 Cast Nodular Iron
3941180
3942411
3965746 Forged Semi Finished
3993804 Raw,5140 Steel

Big Blocks - 3.76 Stroke, One Piece Main Seal

1991+, Gen. V,Gen. VI, 366T,427T
Number C.I.D. Type Description
10114186 427T Forged 1053 Steel
10114187 366T Cast
10114189 427T Cast

CHEVY SMALL-BLOCK V-8 Crankshaft Journal Sizes

Gen.I, "Small Journal"
265...Mains-2.30"-Rods-2.00"
283...Mains-2.30"-Rods-2.00"
302...Mains-2.30"-Rods-2.00"
327...Mains-2.30"-Rods-2.00"

Gen.I, "Medium Journal", includes "Vortec" 305 and 350 thru '98
262...Mains-2.45"-Rods-2.10"
267...Mains-2.45"-Rods-2.10"
302...Mains-2.45"-Rods-2.10"
305...Mains-2.45"-Rods-2.10"
307...Mains-2.45"-Rods-2.10"
327...Mains-2.45"-Rods-2.10"
350...Mains-2.45"-Rods-2.10"

Gen.I, "Large Journal"
400...Mains-2.65"-rods-2.10"

Non-production Gen.I combination, using Gen.I 400 crank in Gen.I 350 block
383...400 crank, Mains cut to 2.45"-Rods-2.10"

Non-production Gen.I combination, using Gen.I 350 crank in Gen.I 400 block
377..."Spacer" or "thick" main bearings with 350 crank-Rods-2.10"

Gen.II, "Medium Journal", includes "L-99" 265, "LT-1" 350, "LT-4" 350
265...Mains-2.45"-rods-2.10"
305...Mains-2.45"-Rods-2.10"
350...Mains-2.45"-Rods-2.10"

Non-production Gen.II combination, using Gen.II 265 "L-99" crank in Gen.II 350 block
302...Mains-2.45"-Rods-2.10"

Gen.III, includes '97-2005 "LS-1" Corvette, Firebird, Camaro
345...Mains-2.558"-Rods-2.10"

Corvette "ZR-1", DOHC, "LT-5"
350...Mains-2.76"-Rods-2.10"


CHEVY BIG BLOCK V-8 Crankshaft Journal Sizes

366T
396
402
427
427T
454
502
ALL Chevy big blocks used...Mains-2.7488"-2.7495"---Rods-2.20"

CHEVY 348-409 "W" MOTOR V-8 Crankshaft Journal Sizes

348
409
427 "Z-11"
ALL "W" family motors used...Mains-2.50"-Rods-2.20"
 
Re: casting numbers

Big Blocks - 4.00 Stroke, Two Piece Main Seal

http://enthusiast.yearone.com/vehicle-i ... -decoding/

http://www.nastyz28.com/sbcmenu.php#chi ... ose_button

1970-90 Mark IV 454,502
Number C.I.D. Type Description
3520 454 Forged 1053 Steel,Cross-Drilled
3521 454,502 Forged 5140 Steel,Cross-Drilled
3524 454 Forged
7416 454,502 Forged 1053 Steel,Cross-Drilled
7463 454 Forged
336782 454 Cast
353039 454 Cast
353638 454
359730 454
3962523 454 Forged
3963523 454
3963524 454 Forged
3967416 454 Forged
3967463 454 Forged
3975945 454
3963521 454 Forged 5140 Steel,Cross-Drilled
3965753 Forged 5140 Steel,Semi Finished
3975495 454
3993878 454 Forged
10051169 454 Forged Raw

Big Blocks - 4.00 Stroke, One Piece Main Seal

1991+ Gen. V, Gen. VI, 454,502
Number C.I.D. Type Description
10114188 454 Cast
14097044 454,502 Forged 1053 Steel

http://www.4speedconversions.com/chevy-bellhousings.html

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keep in mind any serious performance application is best served with SFI certified billet flywheel,
clutch assembly and a blow proof bell housing

Exhaust Manifold ID
http://outintheshop.com/faq/casting/exhaust_man.html
SEARCH cast numbers

Use these casting numbers to identify the exhaust manifolds you have.



Chevy Exhaust Manifolds Casting Numbers
Use these casting numbers to identify the exhaust manifolds you have.

Casting Number Years Engine Side Comments
336706 74-78 350 RH
336707 74-78 350 LH
336708 74-78 350 RH
336709 74-78 350 RH Camaro & Z-28 with A.I.R.
336710 74-78 307, 350 & 400 LH Chevelle,Camaro,Z-28,Nova and Passenger with A.I.R.
346222 74-80 307, 350 & 400 RH Chevelle,Camaro, Nova and Passenger with A.I.R.
346247 75-77 262, 350&400 LH Chevelle,Camaro Monte Carlo and Passenger 110,145,155,175HP 346248 75-77 262, 350&400 RH Chevelle,Camaro, Monte Carlo and Passenger 110,145,155,175 HP
354432 75-76 262 RH 110 HP
354433 75-76 262 LH 110 HP
364753 76-80 307, 350 & 400 LH Camaro, Monte Carlo, Malibu and Passenger
372243 74-83 307, 350 & 400 RH Corvette and Replacement manifold
462697 77-79 267 & 305 LH Monte Carlo and Malibu
462698 77-83 267 & 305 RH Monte Carlo and Malibu
474008 78-82 267, 305 & 350 RH
745994 80-86 267 & 305 LH
3704791 55-56 265 LH Corvette and Passenger 195 HP
3704792 55-56 265 RH Corvette and Passenger 195 HP
3725563 56 265 LH & RH Corvette and Passenger 210 HP 2-Bolt Flange
3731557 56 265 LH Corvette and Passenger 225 HP
3731558 56 265 RH Corvette and Passenger 225 HP
3732498 58 283 RH Corvette FI
3733975 57 283 LH Corvette and Passenger 220, 245, 250, 270 & 283 HP
3733976 57 283 RH Corvette and Passenger 220, 245, 250, 270 & 283 HP
3737902 62-65 327 RH 300, 340, 360, 365 & 375 HP 2.5" Outlet
3746563 65 327 LH 300 HP
3747038 58-65 283 & 327 RH Corvette and Passenger 220, 250 & 300 HP 1.9" Outlet
3747042 58-68 283, 307 & 327 RH Corvette and Passenger 195, 200, 220, 250, 270, 275, 290, 300 & 350 HP 1.9" Outlet
3747938 64 327 LH & RH 250 & 300 HP
3747942 65 327 LH & RH 250, 350 & 365 HP
3749965 58-63 283 & 327 LH Corvette and Passenger 230,245,250,270,275,290,300 & 315 HP
3750556 58-65 283 & 327 RH Corvette and Passenger 230,245 250,270,275,290,300 & 315 HP
3780728 64-67 327 LH Chevy II
3790729 64-67 283 & 327 LH 195, 220, 250, 270, 275, 300 & 350 HP 2.0" Outlet Chevy II
3790730 64-65 283 & 327 RH 220, 250 & 300 HP 1.9" Outlet Chevy II
3791162 65-66 283 & 327 RH Chevy II with AC
3791182 66-67 283 & 327 RH Passenger with AC
3797901 62-63 327 LH Corvette 300, 340 & 360 HP
3797902 62-65 327 RH Corvette 300, 340, 360, 365 & 375 HP 2.5" Outlet
3797942 63-65 327 LH & RH Corvette 300, 360, 365 & 375 HP 2.5" Outlet
3834947 64-68 283, 307 & 327 LH Chevelle 195, 200, 210, 220, 250, 275, 295, 300, 325, 350 & 365 HP 2.0" Outlet
3836968 55-56 265 RH Corvette and Passenger 195 HP
3837069 55 265 LH Corvette and Passenger 195 HP
3840715 64 283 & 327 LH Chevelle
3840912 64-68 283, 307, 327 & 350 RH Chevelle, Camaro and Nova 195, 200, 210, 220, 250, 275, 295, 300, 325, 350 & 365 HP 1.9" Outlet
3846559 64-71 327 & 350 LH Corvette 250, 270, 300 & 350 HP 2.0" Outlet
3846563 64-65 327 LH Corvette 300, 350 & 365 HP 2.5" Outlet
3846659 66 327 LH 350 HP
3849288 64-67 283 & 327 RH 195, 220, 275 & 350 HP 1.9" Outlet Chevy II
3849290 64-67 283 & 327 RH 195, 220, 275 & 350 HP 1.9" Outlet Chevy II with AC
3855163 65-68 283, 307 & 327 LH Passenger and Truck 195, 200,220,250 & 275 HP 2.0" Outlet
3872723 66-67 283 & 327 LH 195, 220, 275 & 350 HP 2.0" Outlet Chevy II A.I.R.
3872729 66 283 & 327 LH Chevelle 195,220, 275 & 350 HP 2.0" Outlet A.I.R.
3872730 66-68 283, 302, 307 & 327 RH Chevelle, Camaro & Z-28 200, 210, 220, 250, 275, 290, 325 & 350 HP 1.9" Outlet A.I.R.
3872738 66-67 283 & 327 RH 195, 220, 275 & 350 HP 1.9" Outlet Chevy II
3872741 66-68 283, 307 & 327 LH Passenger 195, 200, 220, 250 & 275 HP 2.0" Outlet A.I.R.
3872765 67-71 327 & 350 LH Corvette 300, 330, 350 & 370 HP 2.0" Outlet A.I.R.
3872778 66-68 283, 307 & 327 RH Corvette, Passenger and Truck 195, 200, 250, 275, 300 & 350 HP 1.9" Outlet A.I.R.
3887186 66 283 RH 220 HP 1.9" Outlet
3890424 64-67 283 & 327 RH Chevy II
3892679 66-68 283, 302, 307, 327 & 350 LH Chevelle, Camaro and Z-28 195, 200, 210, 220, 250, 275, 290, 295 & 325 HP 2.0" Outlet
3892683 66-68 283, 302, 307, 327 & 350 LH Chevelle, Camaro and Z-28 195, 200, 210, 220, 250, 275, 290, 295 & 325 HP 2.0" Outlet
3893604 66-68 283 & 327 RH Passenger A.I.R.
3893608 67-68 283, 302, 307, 327 & 350 RH Chevelle, Camaro and Z-28 195, 200, 210, 250, 275, 290, 295 & 325 HP 1.9" Outlet
3896956 67-68 283 & 327 RH Truck
3905364 69-72 307, 350 & 400 RH Truck
3932376 69-70 307, 327, 350 & 400 RH Chevelle and Camaro 200, 210, 250, 255, 265 & 300 HP 1.9" Outlet
3932461 69-74 327 & 350 LH & RH Corvette 190, 195, 200, 235, 255, 300, 330 & 350 HP 1.9" Outlet A.I.R.
3932465 69-70 327, 350 & 400 RH Passenger 235, 250, 255, 265, 300 & 350 HP 1.9" Outlet
3932469 69-70 327 & 350 LH Passenger 235, 250, 255 & 300 HP 2.0" Outlet
3932473 69-70 327, 350 & 400 LH Passenger 235, 250, 255, 265 & 300 HP 2.0" Outlet
3932481 69 350 RH Corvette
3940972 67 350 RH Camaro 295 HP
3942527 69-70 302, 307, 327 & 350 LH Chevelle, Camaro, Z-28 and Nova 200, 210, 250, 255, 290, 300 & 360 HP 2.0" Outlet A.I.R.
3942529 69-70 302, 307, 327, 350 & 400 LH Chevelle, Camaro and Nova 200, 210, 250, 255, 290 & 300 HP 2.0" Outlet
3946826 69-70 302, 307, 327 & 350 RH Chevelle, Camaro, Z-28 and Nova200, 210, 250, 255, 290, 300 & 360 HP 1.9" Outlet A.I.R.
3959562 72-74 307, 350 & 400 RH Chevelle, Camaro and Z-28 115, 130, 145, 150, 160, 165, 170, 175, 180, 185 & 245 HP 2.0" Outlet A.I.R.
3973432 70-74 307, 350 & 400 RH Chevelle, Camaro, Nova and Passenger 115, 130, 150, 165, 170, 175, 180, 200, 245, 250, 255, 270 & 300 HP 2.0" Outlet
3986330 69-73 302, 307, 327 & 350 RH Camaro and Z-28 200, 210, 245, 250, 255, 290, 300, 330 & 360 HP 1.9" Outlet A.I.R.
3989036 71-75 350 LH & RH Corvette and Passenger 165, 195, 200, 205 & 270 HP 2.0" Outlet with and without A.I.R.
3989041 69-74 302, 307, 327, 350 & 400 LH Camaro, Z-28 and Nova 115, 130, 145, 150, 160, 165, 170, 180, 185, 200, 210, 245, 250, 255, 290, 300, 330 & 360 HP 2.0" Outlet with and without A.I.R.
3989043 70-73 307, 350 & 400 LH Chevelle, Camaro, Nova and Passenger 105, 115, 130, 145, 150, 165, 175, 185, 200, 245, 250, 255, 270 & 300 HP 2.0" Outlet with and without A.I.R.
3989055 69-72 307, 350 & 400 LH
3997742 71-78 307 & 350 RH 2.0" Outlet
3998902 72-78 307 & 350 RH
10045315 88-94 305 & 350 LH
10045317 88-94 305 & 350 LH
10045317 88-94 305 & 350 LH
10046123 87-92 305 & 350 LH
10046139 84-85 350 LH
10046140 84-85 350 RH
10055734 87-91 350 RH
10092901 89-91 350 LH
10092903 89-94 350 LH
10092905 89-94 350 LH
10108437 87-93 305 & 350 RH
10128448 91-93 305 & 350 LH
10128483 91-93 305 & 350 LH
10166144 91-94 350 RH
10166145 87-90 305 & 350 LH
10166147 89-94 305 & 350 LH
10166158 89-94 305 & 350 RH
10168494 94 265 & 350 LH
10207656 93-94 350 LH
10207657 93 350 RH
10433037 82-86 305 LH
12550621 94 265 RH
12550622 91 350 RH
14007400 80-86 267 & 305 LH
14014437 80-84 305 LH
14014438 80-84 305 RH
14014459 81-86 305 & 350 LH
14014500 79-86 267, 305 & 350 RH
14022625 80-81 305 LH
14031361 82-86 305 RH
14031376 81-86 350 RH
14034069 81-86 350 RH
14034075 81-86 305 & 350 LH
14043373 82-86 305 LH
14050233 83-86 305 & 350 LH
14050282 83-87 305 & 350 RH
14050287 82-86 305 LH
14057029 84-85 350 LH
14057030 84-85 350 RH
14060630 81-86 350 RH
14060633 81-86 305 & 350 LH
14067365 77-86 267, 305, 350 & 400 LH
14068667 85-88 350 LH
14068670 85-88 350 RH
14071200 83-86 305 RH
14075611 83-86 305 LH
14079295 85-86 305 & 350 LH
14079296 85-86 305 & 350 RH
14087511 86-91 350 LH
14087512 86-91 350 RH
14093653 87-90 305 & 350 LH
14093654 87-90 305 & 350 RH
14093655 87-90 305 & 350 LH
14093658 88-94 305 & 350 RH
14093660 87-90 305 & 350 RH
14093682 87-90 305 & 350 RH
14094045 87-90 305 & 350 LH
14094063 87-92 305 & 350 LH
14094064 87-92 305 & 350 RH
14094065 85-88 350 RH
14101054 87-88 305 & 350 RH
14102016 88-94 305 & 350 RH
14102018 89-94 305 & 350 RH
14103206 87-91 305 & 350 RH
14103207 87-91 305 & 350 LH
329225 73-76 454 LH Chevelle and Passenger with and without A.I.R.
353028 73-76 454 LH Chevelle and Passenger with and without A.I.R.
353030 73-76 454 LH Police
3732793 58-61 348 LH Passenger
3732794 58-61 348 RH Passenger
3767583 59-61 348 & 409 LH Passenger
3767584 59-61 348 & 409 RH Passenger
3814682 62-64 409 RH Passenger
3814683 62-64 409 LH Passenger
3822925 62-64 409 LH Passenger & Z-11
3822926 62-64 409 RH Passenger & Z-11
3855161 65 409 LH Passenger 340 & 400 HP
3855162 65 409 RH Passenger 340 & 400 HP
3856297 65 396 LH 325 HP
3856301 65 396 LH 425 HP Corvette
3856302 65 396 RH 425 HP Corvette
3856306 65 396 RH Passenger 325 HP
3857297 65 396 LH Passenger 325 HP
3868874 65-66 396 RH Chevelle 325, 360 & 375 HP Z-16
3869925 65 396 LH Chevelle 375 HP Z-16
3872770 66 396 RH
3880827 66-69 427 & 454 LH Corvette
3880828 66-72 427 & 454 RH Corvette 270,365,390 &425 HP with and without A.I.R. LS-5 & LS-6
3880869 70-72 454 LH Corvette 365 & 425 HP with and without A.I.R. LS-5 & LS-6
3883827 66 427 LH Passenger
3883828 66 427 RH Passenger
3883999 66 396 LH Chevelle 325, 360 & 375 HP
3884504 66-67 396 & 427 RH Passenger 325, 385 & 390 HP
3892307 66-67 396 & 427 LH Passenger 325 & 390 HP
3902401 67 396 LH Chevelle
3904399 66 396 LH
3909879 67-70 396, 427 & 454 LH Chevelle, Camaro and Nova 325, 350, 375, 425, 430 & 450 HP LS-6 COPO
3909880 67 396 RH Chevelle and Camaro 325, 350 & 375 HP
3914613 68-70 396 & 427 LH Passenger 265, 325, 335, 345, 390 & 425 HP
3916178 68-70 396, 427 & 454 RH Chevelle, Camaro, Nova and Passenger 325, 350, 375, 425, 430 & 450 HP COPO LS-5 & LS-6
3969869 70-74 454 LH Corvette 270, 365 & 390 HP with and without A.I.R. LS-5
3989310 71-72 402 & 454 RH Chevelle, Camaro, Monte Carlo and Passenger
3989343 71-72 402 & 454 LH Chevelle, Camaro, Monte Carlo and Passenger
3994045 73-75 454 LH Police


 
Last edited by a moderator:
Small Block Chevy Gen I Cylinder Heads by Casting Number

10033867 – V8 aluminum, Pontiac 23 degree head, 62cc chambers, angle plugs, 196cc intake ports


The famous double hump cylinder heads, the #3782461 and #3782461X used 1.94/1.50-inch valves. These were commonly called “Fuelie” heads because they were released with mechanical Rochester fuel injection on the stock engines.

10045434 – V8 aluminum, Pontiac 15 degree head, 55cc chambers, angle plugs, raised runners

10051101 – V8 Bowtie, aluminum, 55cc chambers, angle plugs, raised runners, 196cc intake ports

10065202 – 1987-1995 350, truck

10065203 – 1987-1995 350, truck

10065204 – 1987-1995 350

10065205 – 1987-1995 305

10065206 – 1987-1995 350

10065207 – 1987-1995 305

10088113 – SBC350, Aluminum, 58cc, angle plugs, raised runners, d-port exhaust, 1.94/1.5 valves

10093328 – V8 Pontiac 15 degree head, aluminum, 224cc intake ports, 61cc chambers

10110810 – 1991 350, 65cc chambers

10120928 – 1987-1995 350

10134352 – V8 Bowtie, 45cc chambers, angle plugs, low port, 223cc intake ports, aluminum, 18 degree race head

10134363 – V8 Aluminum, 18 degree or 15 degree, Bowtie race head.

10147898 – 1995-1998 350, crate engine

10159550 – 1987-1995 350

10159551 – 1987-1995 305

10159552 – 1987-1995 350

10159553 – 1987-1995 305

10185040 – V8 Bowtie, aluminum, 45cc chambers, symmetrical ports, 263cc intake ports, splayed valves

10185040 – V8 Bowtie, aluminum, 45cc chambers, symmetrical ports, 240cc intake ports, splayed valves

10239906 – 1996 350, Vortec 5700, L31, 64cc chambers, 170cc intake ports, 1.94/1.5 valves

12367712 – 1999 Fast Burn, aluminum, 210cc intake ports, port, 2.00/1.55 valves, 62cc chambers

12367713 – 1999 ZZ430 crate engine, aluminum, 210cc intake port, 2.00/1.55 valves, 62cc chambers

12480011 – 1997 Bowtie SB2.2, aluminum

12506450 – 1987-1995 350

12509859 – 1987-1994 305

12516852 – 1987-1995 350


Casting number 25534421.

12552520 – 1997 305, Vortec, truck

12558059 – 1997 305, Vortec, truck, 1.84/1.5 valves

12558062 – 1998 350, L31 Vortec, truck, 64cc chambers, 1.94/1.5 valves, 170cc intake ports

14008856 – 1979-1981 267

14010201 – 1982-1985 305

14010516 – 1980-1986 350

14011034 – V8 Bowtie, cast iron, 64cc chambers, 184cc intake ports, angle plugs

14011049 – Bowtie, aluminum, 55cc chambers, angle plugs, 180cc intake ports

14011083 – 1955-1986 350, crate engine, 285hp or 300hp, 64cc chambers, 1.94/1.5 valves

14014415 – 1980-1985 267 or 305

14014416 – 1980-1986 305, 1.84/1.5 valves, 58cc chambers

14014440 – 1980 305, 1.84/1.5 valves

14019821 – 1980-1986 350

14019924 – 1979-1981 267

14019926 – 1980-1986 350

14020517 – 1980 350

14020555 – 1981 305

14020556 – 1981 350

14022056 – 1985 350

14022206 – 1980 350

14022301 – 1980-1986 305

14022601 – 1980-1986 267 or 305, 1.72/1.5 or 1.84/1.5 valves, 53cc chambers

14022801 – 1980-1986 305

14024816 – 350, 76cc chambers, 1.94/1.5 valves, crate engines

14034806 – 1978-1982 267

14034807 – 1978-1986 305

14034808 – 1980-1986 350

14034808 – 1996 350, 76cc chambers, 1.94/1.5 valves, Goodwrench crate engines

14034810 – 1980-1986 350, truck

14034811 – 1980-1986 350, truck

14039121 – 1981-1986 305, truck

14039122 – 1981-1986 305, truck

14071114 – 1980-1986 350


Casting number 19300955

14075381 – 1980-1986 350, truck

14079261 – 1986 350

14085844 – 1980-1986 350, truck

14085963 – 1986 350

14089119 – 1986-1988 350

14094093 – 1986-1988 350

14096217 – 1955-1986 350, crate engine, 285hp or 300hp, 64cc chambers, 72 degree or 90 degree center intake manifold bolt angles

14101081 – 1987-1995 305

14101083 – 1987 350, crate engines, 285hp or 300 hp, 64cc chambers, 72 degree center manifold bolt angles

14101128 – 1986-1987 350, aluminum, 58cc chambers, angle plugs

14102187 – 1987-1991 305, 1.84/1.5 valves

14102191 – 1987 350

14102193 – 1987 305 or 350, 1.94/1.5 valves

1816887 – 1963 283, GMC HD truck

22542525 – Dart or Olds or Chevy aluminum, 14 degree or 17 degree race head

24502559 – 1996-1997 Bowtie, SB2, 1st version, mirror ports, aluminum, 196cc port, CNC version, 280cc intake ports, 38cc chambers

25500141 – Buick or Chevy aluminum, 10 degree race head, 42cc chambers, symmetrical ports, 235cc intake ports, 2.1/1.625 valves

25534351C – 2004 Bowtie, cast iron, Vortec, 175cc intake ports, 65cc exhaust ports, 2.00/1.55 valves

25534371C – 2004 Bowtie, cast iron, Vortec, 206cc intake ports, 77cc exhaust ports, 2.00/1.55 valves

330545 – 1973 350, 76cc chambers, 2.02/1.60 valves

333881 – 1974-1975 350, 76cc chambers, 2.02/1.60 valves

333882 – 1974-1980 350 or 400, 76cc chambers

33417369 – 1990 350, Goodwrench crate engine, 76cc chambers

340292 – 1970 replacement, angle plugs, 64cc chambers

354434 – 1975-1979 262 or 267 or 305, 60cc chambers

358741 – 1976-1979 305

3636839 – 1955 265

3703523 – 1955 265

3713358 – 1955-1956 265


Casting number 3795896

3713569 – 1955-1956 265

3725306 – 1956 265

3731539 – 1957 283, 283hp, mechanical fuel injection

3731544 – 1957-1961 283

3731554 – 1957-1962 283

3731556 – 1957 283, truck

3731762 – 1956 265, Corvette

3737775 – 1962-1967 283 or 327

3740997 – 1957 283, carb or fuel injection, not 283hp

3743056 – 1958 283

3743096 – 1962-1967 327, GMC Truck

3747363 – 1957-1961 283

3747460 – 1959-1967 283 or 327, 70cc chambers

3748770 – 1958 283

3748772 – 1958-1961 283

3755537 – 1957-1962 283

3755539 – 1958-1962 283

3755549 – 1957-1962 283

3755550 – 1959 283

3755585 – 1962-1967 327, GMC Truck

376445 – 1977-1985 350, 76cc chambers, small valves

376450 – 1975-1981 262 or 267 or 305. 6 or 7 exhaust bolt holes, 60cc chambers

3767460 – 1959-1960 283

3767462 – 1962-1967 327

3767465 – 1959-1961 283

3767754 – 1959-1961 283, 60cc chambers

3767792 – 1960-1964 283

3774682 – 1960-1964 283 or 327, 70cc chambers

3774684 – 1962-1964 327, 75cc chambers

3774692 – 1958-1964 283, 60cc chambers

3782461 – 1964-1966 327, camel hump, no accessory holes, 160cc intake ports, 62cc exhaust ports, 62cc chambers


Casting number 3795896. Manufactured from 1963-1965 on 283 Cubic Inch engines. Called the “Power Pack” cylinder heads. 1.72˝ intake valves and 1.50˝ exhaust valves. 60cc Combustion Chambers.

3782461X – 1960-1963 283 or 327, camel hump,no accessory holes,larger 172cc intake ports, 64cc exhaust ports, 62cc chambers

3795896 – 1963-1965 283, 60cc chambers

3795896 – 1962-1964 327, 60cc chambers

3798996 – 1963-1967 327

3814480 – 1960-1967 283 or 327, 70cc chambers, 1.72/1.5 valves

3814482 – 1962-1967 283 or 327 or 350, 75cc chambers

3817680 – 1963-1967 283 or 327

3817681 – 1962-1967 327

3817682 – 1961-1962 283

3836839 – 1955 265

3836842 – 1957-1967 283 or 327

3837064 – 1956-1962 265 or 283

3837065 – 1955-1956 265, truck

3848720 – 1957-1958 283

3876775 – 1960-1967 283 or 327, 75cc chambers

3884520 – 1960-1967 283, 60cc chambers, some used by Studebaker

3884520 – 1962-1967 327, 60cc chambers, some used by Studebaker

3890462 – 1966-1967 302 or 327 or 350, camel hump, no accessory holes, 64cc chambers

3901068 – 1987-up 350, crate engine, 285hp, 64cc chambers

3911032 – 1968 307 or 327, 70cc chamber

3912264 – 1958-1962 283

3912265 – 1963-1964 283

3912311 – 1965-1967 327

3912313 – 1965-1967 327

3917290 – 1967-1968 307 or 327

3917291 – 1967-1968 302 or 327 or 350, camel hump, no accessory holes, 64cc chambers

3917292 – 1968 327 or 350, camel hump, 64cc chambers

3917293 – 1967-1968 307 or 327, 75cc chambers

3927185 – 1969-1976 307 or 327 or 350, 70cc chambers

3927186 – 1969-1970 302 or 350, camel hump, 64cc chambers, has accessory holes

3927187 – 1969-1970 350, camel hump, 64cc chambers, has accessory holes

3927188 – 1969 327, 74cc chambers

3927188 – 1970 307, 74cc chambers

3931633 – 1968-1973 307

3931635 – 1968-1976 350

3931638 – 1968 327, truck

3932441 – 1969-1970 350, 76cc chambers

3932441X – 1969-1970 350 or 400, 80cc chambers

3932454 – 1969-1973 307

3932454 – 1969-1979 350, truck

3946812 – 1969 350

3946813 – 1969-1979 350, truck


Casting number 12529093

3947040 – 1968 327, 64cc chambers, truck, no accessory holes

3947041 – 1969-1970 302 or 350, 64cc chambers

3947041X – 1969-1970 302 or 350, 64cc chambers, 165cc intake ports

3951598 – 1970 400, 76cc chambers

3964286 – SBC 350

3965742 – 1970 350, replacement, angle plugs

3970126 – 1967-1971 327 or 350

3973370 – 1969-1970 350, 64cc chambers, straight plugs or angle plugs

3973414 – 1970 350, LT1, 350hp or 370hp, camel hump, 64cc chambers

3973487 – 1971-1972 350, 1.94/1.5 or 2.02/1.6 valves, also 1971 350 or 330hp LT1, 75cc chambers

3973487X – 1971-1972 350, 1.94/1.5 or 2.02/1.6 valves, 75cc chambers

3973493 – 1971-1972 400, 76cc chambers

3986316 – 1971 350, 76cc chambers

3986336 – 1971 350, 76cc chambers

3986336X – 1971 350, 76cc chambers

3986339 – 1971 307 or 350, 74cc chambers

3986339X – 1971 307 or 350, 74cc chambers

3986388 – 1968-1976 307 or 350

3991492 – 1970 350, LT1, camel hump, accessory holes, 64cc chambers, straight plugs

3991492 – 1970 camel hump, 64cc, straight plugs or angle plugs

3998916 – 1972 350, 1972 350 LT1, screw in studs, 76cc chambers

3998920 – 1972-1973 350

3998991 – 1972-1973 307 or 350, 75cc chambers

3998993 – 1972-1973 307 or 350, 75cc chambers

3998993 – 350, Goodwrench crate engine, 75cc chambers

3998997 – 1972-1973 350 or 400, 76cc chambers

3998997 – 1978-1984 305 or 350, 76cc chambers

4079261 – 1975 350

458642 – 1975-1984 350, 350

462614 – 1977-1979 305, 60cc chambers

462624 – 1975-1986 350 or 400, 76cc chambers, 1.72/1.50, 1.94/1.50 or 2.02/1.60 valves

468642 – 1976 350 or 400

471513 – 1979 267 or 350

517513 – 1979 267 or 350
 
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