The Corvette Aluminum intake 80-82 Vs std 70-79

[chromebumpers]

The first question is "can you?" or does it fit (of the same exact size and will the ports line up? Must the heads be changed too?) Other than the obvious, is there any benifit to swapping out an Aluminum 1980 manifold with the steel manifold of the standard L-48 of the seventies? Is the 80 - 82 Aluminum manifold actually the same as all of the L-82 available from '73 - 79?

 

[Grumpy]

first ID point out that NO factory intake manifold I've ever seen has ports EXACTLY matching the intake runner ports but they are close every intake requires port matching work, on the plus side, the intake manifolds tend to match the intake gaskets better than the ports in the head castings in most cases
WHERE YOU POTENTIALLY run into issues is with the vortec heads with the reverse flow cooling, if your looking to swap first gen intakes onto second gen LT1 heads, is both routing coolant and the noticeably taller vortec ports not sealing near the top of the intake manifolds runner ports on the first gen intakes using a LT1 style vortec head

COMMON SBC INTAKE PORTS
felpro # 1204=Port Size: 1.23" x 1.99"=2.448 sq inches

felpro # 1205=Port Size: 1.28" x 2.09"=2.67 sq inches

felpro # 1206=Port Size: 1.34" x 2.21"=2.96 sq inches

felpro # 1207=Port Size: 1.38" x 2.28"=3.146 sq inches

felpro # 1209=Port Size: 1.38" x 2.38"=3.28 sq inches

felpro # 1255 VORTEC=Port Size: 1.08" x 2.16"-2.33 sq inches

felpro # 1263=Port Size: 1.31" x 2.02"=2.65 sq inches

felpro # 1266=Port Size: 1.34" x 2.21"=2.96 sq inches

felpro # 1284 LT1=Port Size: 1.25 x 2.04''=2.55 sq inches

felpro # 1289 FASTBURN=Port Size: 1.30" x 2.31"3.00 sq inches



http://garage.grumpysperformance.com/index.php?threads/193-swirl-port-heads.10579/#post-61639

http://garage.grumpysperformance.co...-vortec-heads-and-other-heads.401/#post-34996

http://www.lbfun.com/warehouse/tech_info/ID numbers & codes/Chev Intake Casting Numbers.pdf


(1953-1967 Exhaust Manifold Casting Numbers)



1953-55


Left-Hand Right-Hand Application
3836108 Six-Cylinder
3704791 3704792 1st Design V-8
3837069 3836968 2nd Design V-8


1956


Left-Hand Right-Hand Application
3725563 3725563 1st Design, All Engines
3731557 3731558 2nd Design, All Engines

1957


Left-Hand Right-Hand Application
3733975 3733976 All Engines

1958-61


Left-Hand Right-Hand Application
3749965 3750556 All Engines

1962


Left-Hand Right-Hand Application
3749965 3750556 250 Horsepower
3797901 3797902 300, 340 & 360 Horsepower

1963


Left-Hand Right-Hand Application
3749965 3750556
250 Horsepower

300 Horsepower with Powerglide

3797901 3797902 300 & 340 Horsepower with Manual Transmission
3797942 3797902 360 Horsepower Fuel Injection

1964


Left-Hand Right-Hand Application
3846559


3747038


250 Horsepower with Air Conditioning

300 Horsepower with Powerglide & Air Conditioning

3846559


3750556


250 Horsepower with Man. Trans. or Powerglide 300 Horsepower with Powerglide
3846563
3797902

300 Horsepower with Manual Transmission

365 Horsepower without Air Conditioning

3846563 3797942 365 Horsepower with Air Conditioning
3797942 3797902 375 Horsepower Fuel Injection

1965


Left-Hand Right-Hand Application
3846559
3747038

Early 250 Horsepower with Air Conditioning

Early 300 Horsepower with Powerglide & A/C

3846559
3750556

250 Horsepower

300 Horsepower with Powerglide

3846563
3797902

300 Horsepower with Manual Transmission

3846559
3747042

250 Horsepower with Air Conditioning

300 Horsepower with Powerglide & A/C

3846563
3797902

350 & 365 Horsepower without Air Conditioning

3846563
3797942

300 Horsepower with Man. Trans. & A/C

350 & 365 Horsepower with Air Conditioning

3797942
3797902

375 Horsepower Fuel Injection

3856301
3856302

425 Horsepower 396 Engine


1966


Left-Hand Right-Hand Application
3846559 3747042
300 & 350 Horsepower 327 Engines

3872765 3872778 300 & 350 Horsepower with K19*
3880827
3880828

390 & 425 Horsepower 427 Engines


1967


Left-Hand Right-Hand Application
3846559 3747042
300 & 350 Horsepower 327 Engines

3872765 3872778 300 & 350 Horsepower with K19*
3880827
3880828

390, 400, 435 Horsepower & L88 427 Engines

Note*) K19 is Air Injection Reactor.



Exhaust Manifold Notes



Exhaust manifold casting dates may not be visible when manifold is installed, and some manifolds may not include a casting date. casting date codes are as described for engine blocks, except they do not normally carry a calendar-year reference.

1957-65 Fuel injection right-hand exhaust manifolds do not have a machined hole as used for choked heat tube in carburetor applications. 1963-65 fuel injection left-hand exhaust manifolds do have a machined hole for heat tube.



1953 - 1967 Corvette Specification Guide (1953-1967 Intake Manifold Casting Numbers)



1953-1955

(3707064) Aluminum Six-Cylinder
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

3735448 Cast Iron 210 Horsepower
3837109 Cast Iron 210 Horsepower( possible usage)
3728725 Aluminum 1st Design 255Horsepower
3731394 Aluminum 2nd Design, 255 & 240 Horsepower
1957

3731398 Cast Iron 220 Horsepower
3739653 Aluminum 245 & 270 Horsepower
1958-1961

3746829 Cast Iron Single Four-Barrel Carburetor
3739653 Aluminum Dual Four-Barrel Carburetor
1962

3783244 Cast Iron 250 Horsepower
3799349 Aluminum 300 Horsepower
3795397 Aluminum 340 Horsepower
1963

3783244 Cast Iron 250 Horsepower
3799349 Cast Iron 300 Horsepower
3844459 Cast Iron 300 Horsepower (very late)
3794129 Aluminum 340 Horsepower
1964

3844457 Cast Iron 250 Horsepower
3799349 Cast Iron 300 Horsepower (early, usage unverified)
3844459 Cast Iron 300 Horsepower
3844461 Aluminum 365 Horsepower
1965

3844457 Cast Iron 250 Horsepower 327 Engine
3866922 Cast Iron Late 250 Horsepower 327 Engine
3844459 Cast Iron 300 Horsepower 327 Engine
3844461 Aluminum 350 & 365 Horsepower 327 Engines
3866963 Aluminum 450 Horsepower 427 Engine
1966

3872783 Cast Iron 300 Horsepower 327 Engine
3890490 Aluminum 350 Horsepower 327 Engine
3866948 Cast Iron 390 Horsepower 427 Engine
3885069 Aluminum 425 Horsepower 427 Engine


1967



3872783

Cast Iron

300 Horsepower 327 Engine

3890490

Aluminum

350 Horsepower 327 Engine

3866948

Cast Iron

390 Horsepower 427 Engine

3883948

Cast Iron

Late 390 Horsepower 427 Engine

3894382

Aluminum

400 Horsepower 427 Engine

3894374

Aluminum

435 Horsepower 427 Engine

3885069

Aluminum

L88 (3886093 also possible)



Previous Page Next Page

(1953-1967 Corvette Carburetors)

1953

HP Application Mfg. Model Mfg. # Chev. #
150


All


Carter YH 2066S* 3706151
Carter YH 2066SA** 3706989
1954

HP Application Mfg. Model Mfg. # Chev. #
150 All Carter YH 2066SA 3706989
1955

HP Application Mfg. Model Mfg. # Chev. #
155 All Carter YH 2066SA 3706989
195


All Carter WCFB 2218S* 3717687
Carter WCFB 2351S** 3724158
1956

HP Application Mfg. Model Mfg. # Chev. #
210 All Carter WCFB 2366SA 3733246
225


frt. Carter WCFB 2419S 3730599
rr. Carter WCFB 2362S 3720953
* 1st Design ** 2nd Design

1957

HP Application Mfg. Model Mfg. # Chev. #
220


All


Carter WCFB 2366SA* 3733246
Carter WCFB 2655S** 3744925
245




frt. Carter WCFB 2419S* 3730599
rr. Carter WCFB 2362S* 3720953
frt. Carter WCFB 2626S** 3744002
rr. Carter WCFB 2627S** 3744004
270


frt. Carter WCFB 2613S 3741089
rr. Carter WCFB 2614S 3741090
1958

HP Application Mfg. Model Mfg. # Chev. #
230 All Carter WCFB 2669S 3746384
245


frt. Carter WCFB 2626S 3744002
rr. Carter WCFB 2627S 3744004
270


frt. Carter WCFB 2613S 3741089
rr. Carter WCFB 2614S 3741090
1959

HP Application Mfg. Model Mfg. # Chev. #
230 All Carter WCFB 2818S 3756676
245 frt. Carter WCFB 2626S 3744002
245 rr. Carter WCFB 2627S 3744004
270


frt. Carter WCFB 2613S 3741089
rr. Carter WCFB 2614S 3741090
1960

HP Application Mfg. Model Mfg. # Chev. #
230


All


Carter WCFB 2818S* 3756676
Carter WCFB 3059S** 3779178
245


frt. Carter WCFB 2626S 3744002
rr. Carter WCFB 2627S 3744004
270


frt. Carter WCFB 2613S 3741089
rr. Carter WCFB 2614S 3741090
1961

HP Application Mfg. Model Mfg. # Chev. #
230 All Carter WCFB 3059S 3779178
245


frt. Carter WCFB 2626S* 3744002
frt. Carter WCFB 3181S** 3785554
rr. Carter WCFB 2627S 3744004
270


frt. Carter WCFB 2613S* 3741089
frt. Carter WCFB 3182S** 3785552
rr. Carter WCFB 2614S 3741090
1962

HP Application Mfg. Model Mfg. # Chev. #
250 PG (early) Carter WCFB 3190S 3788245
All Carter WCFB 3191S 3788246
300 M.T. Carter AFB 3269S 3797699
PG Carter AFB 3310S 3819207
340 All Carter AFB 3269S 3797699
1963

HP Application Mfg. Model Mfg. # Chev. #
250 M.T. Carter WCFB 3501S 3826003
PG Carter WCFB 3500S 3826005
300 M.T. Carter AFB 3461S 3826004
PG Carter AFB 3460S 3826006
340 All Carter AFB 3461S 3826004
1964

HP Application Mfg. Model Mfg. # Chev. #
250


M.T. Carter WCFB 3697S 3846247
PG Carter WCFB 3696S 3846246
300


M.T. Carter AFB 3721S/SA/SB 3851761
PG Carter AFB 3720S/SA/SB 3851762
365 All Holley 4150 R2818A 3849804
1965

HP Application Mfg. Model Mfg. # Chev. #
250


M.T. Carter WCFB 3697S 3846247
PG Carter WCFB 3696S 3846246
300


M.T. Carter AFB 3721SB 3851761
PG Carter AFB 3720SB 3851762
350 All Holley 4150 R2818A 3849804
365 All Holley 4150 R2818A 3849804
425 All Holley 4150 R3124A 3868826
1966

HP Application Mfg. Model Mfg. # Chev. #
300/350 Holley 4160 R3367A 3884505
300/350 K19 Holley 4160 R3605A 3890499
390 Holley 4160 R3370A 3882835
390 K19 Holley 4160 R3606A 3892341
425 All Holley 4150 R3247A 3886101
1967

HP Application Mfg. Model Mfg. # Chev. #
300/350 Holley 4160 R3810A 3906631
300/350 K19 Holley 4160 R3814A 3906635
390 Holley 4160 R3811A 3906633
390 K19 Holley 4160 R3815A 3906637
400


4-spd. ctr. Holley 2300C R3660A 3902355
frt./rr. Holley 2300 R3659A 3902353
400


PG ctr. Holley 2300C R3888A 3909872
frt./rr. Holley 2300 R3659A 3902353
430 L88 Holley 4150 R3418A 3886091
435


All ctr. Holley 2300C R3660A 3902355
frt./rr. Holley 2300 R3659A 3902353
* First Design ** Second Design

Notes: Carburetor Model designations are - "YH" side draft; "WCFB" Wrought Cast Four Barrel; "AFB" Aluminum Four Barrel; "4150/4160" four-barrel; "2300C" primary two-barrel; "2300" secondary two-barrel. Abbreviations & Codes - "PG" Powerglide transmission; "M.T." Manual Transmission; :"frt., rr. & ctr." front, rear & center carburetor positions on engine block; "K19" Air Injection Reactor system; "L88" Heavy-Duty engine.


orvette 1953-1965 fuel injection

1953 - 1967 Corvette Specification Guide(1953-1965 Corvette Fuel Injection)



Unit # Air Meter Fuel Meter Model Year Application
7014360 7014521 7014362 Early-1957 250 & 283 HP
7014520 7014521 7014522 Mid-1957 250 & 283 HP
7014800 (7014)801 (7014)802 Late-1957 & 1958 250 HP
7014800R* (7014)801 (7014)802 Early 1958 290 Horsepower
7014900


(7014)901


(7014)902


1958 250 Horsepower
1959 290 Horsepower
7014900R*


(7014)901


(7014)902


1958 290 Horsepower
1959 290 Horsepower
7014960


(7014)801


(7014)962


Late-1957 283 Horsepower
1958 290 Horsepower
7017200 (7017)201 (7017)202 Late-1958 250 Horsepower
1959 1960 250 Horsepower
1961 275 Horsepower
7017250 (7017)251 (7017)252 1959 1960 290 Horsepower
7017300***


(7017)301


(7014)802 1959 1960 290 Horsepower


(7014)962
(7017)302
7017300R***


(7017)301


(7014)802 1959 250 Horsepower


(7014)962
(7017)302
7017310


(7017)201


(7017)202


1959-1960 250 & 290 HP
1961 275 Horsepower
7017320


(7017)251


(7017)252****


1960 290 Horsepower
1961 315 Horsepower
7017355 no stamp (7017)252 Very Early 1962 360 HP
7017360 no stamp (7017)252 or no stamp 1962 360 Horsepower
7017375 cast 7017248 cast 7017277 1963 360 Horsepower
7017375R cast 7017248 cast 7017277 Early-1964 375 Horsepower
7017380


cast 7017248


cast 7017277


Late-1964 375 Horsepower
1965 375 Horsepower



* Unit made from 714520 units

** Same as 4900 except calibrated richer

***Rebuilt 4800 & 4960 units using a single line air meter

**** Correcting overstamp (5 over 0) found on some fuel meters

 

[GLHS60]

Richard, as interchangeable as many SBC intakes are there are many differences, especially with the choke.

1970 and older were one style and 1971 -72 another then 1973 and newer often had EGR.

All aluminum factory Qjet intakes had EGR and some were integral and some divorced choke.

Depending on what year L48 you have and if you need a functioning choke are considerations.

Carbs and intakes need to match to some extent if you need a functioning choke.

If stock appearance matters you might not want an EGR intake on say a 1972 and older.

Thanks
Randy

 

[Loves302Chevy]

The first question is "can you?" or does it fit (of the same exact size and will the ports line up? Must the heads be changed too?) Other than the obvious, is there any benifit to swapping out an Aluminum 1980 manifold with the steel manifold of the standard L-48 of the seventies? Is the 80 - 82 Aluminum manifold actually the same as all of the L-82 available from '73 - 79?

My vote is NO BENEFIT. Leave it alone. Plus you will ADD WEIGHT with the cast iron manifold.

 

[GLHS60]

I'm not sure what Engine he presently has so he might want to add weight or add lightness.

Thanks
Randy

 

[Drawmain]

If you are adding a later aluminum intake to an earlier engine, yes you can without issue (though adding an 82 intake would be problematic). You won't gain much, if anything from it other than weight loss.

 

[chromebumpers]

I'm not sure what Engine he presently has so he might want to add weight or add lightness.

Thanks
Randy

Initially I was thinking of the difference between the L-48 with cast iron intake Vs the L-82 with Aluminum intake that perhaps aside from some weight savings there might be a slight better flow? I believe Drawmain summed it up correctly.