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Reference GuideEngine
ZZ4 350 Tech Specs
Full Details for GM Performance Parts 24502609
(read carefully as not all parts go with all engine combos, engines range from 350 displacement 355 hp to 383 displacement 500hp combos)
http://www.sallee-chevrolet.com/ChevySm ... 3-425P.cfm
http://www.sallee-chevrolet.com/ChevySm ... 83-500.cfm
The ZZ4 needs no introduction; as GMs most popular crate engine the ZZ4 offers a combination of performance quality and reliability that has made it the only choice for many of todays Hot Rodders. Just imagine a small block with 4-bolt mains a forged steel crankshaft powdered metal connecting rods and 10:1 hypereutectic pistons with offset pins. Throw in a steel roller camshaft (.474 in. intake/.5 10 in. exhaust lift and 208 degrees intake/221 degrees exhaust duration at .050 in.) and top it off with 58cc aluminum cylinder heads with 1.94 in. intake/1.50 in. exhaust valves and LT4 chrome silicon valve springs a GM aluminum dual-plane intake manifold HEI distributor cast iron water pump 8 in. harmonic balancer and automatic transmission flexplate. All together this combo makes 355 HP at 5250 rpm and 405 ft.-lbs. of torque at 3500 rpm
Block Part Number:10105123
Block Type:Cast iron with 4-bolt main caps
Bore x stroke (in):4.00 x 3.48
Camshaft duration (@.050 in):208 degree intake / 221 degree exhaust
Camshaft lift (in):.474 intake / .510 exhaust
Camshaft Part Number:10185071
Camshaft type:Steel hydraulic roller
Compression ratio:10:1
Connecting Rod Part Number:10108688
Connecting rods Type
owdered metal steel
Crankshaft Part Number:12556307
Crankshaft Type:Forged steel
Cylinder head Part Number:12556463
Cylinder head Type:Aluminum; 58cc chambers
Displacement (cu in):350
Engine Name:ZZ4 350:
Engine type:Chevy small-block V-8
Ignition timing:10 degree BTDC @ 800 rpm 32 degree total @ 4000 rpm with vacuum advance disconnected
Maximum rpm:5800
NOTEistributor with melonized steel gear MUST be used with long blocks and partial engines with steel camshafts, or engine damage will occur.
Piston Part Number:10159436
Pistons Type:High-silicon aluminum with offset pins
Recommended fuel:92 octane
Rocker arm ratio:1.5:1
Rocker arms Part Number:10089648
Rocker arms Type:Stamped steel
Valve size (in):1.94 intake / 1.50 exhaust
http://www.gmhorsepower.com/350-ZZ4-Turn-Key.php
http://www.hotrod.com/techarticles/engi ... index.html
ZZZ ZZ1 ZZ2 ZZ3 ZZ4
Part No. 10134338 10185025 10185025 10185072 "24502609 (long-block)
12561723 (short-block)
12499712 (turnkey)"
Year introduced 1989 1991 1992 1993 1996
Rated horsepower 345 345 345 345 355
Rated torque 387 387 387 387 405
Compression ratio 9.8:1 9.8:1 9.8:1 9.8:1 10.0:1
Piston material "Cast hypereutectic
aluminum" Same as ZZZ Same as ZZZ Same as ZZZ Same as ZZZ
Piston top "Flat-top with ""four eye-
brow"" valve reliefs" Same as ZZZ Same as ZZZ Same as ZZZ "Flat-top with machined
valve reliefs"
Piston pins No offset Offset Offset Offset Offset
Camshaft type Hydraulic roller Hydraulic roller Hydraulic roller Hydraulic roller Hydraulic roller
Camshaft specs "0.235°/0.235°,
0.480""/0.480""" Same as ZZZ Same as ZZZ "0.208°/0.221°,
0.474""/0.510""" Same as ZZ3
Timing chain Single roller, 1/2" pitch Butt link Butt link Single roller, 1/2" pitch Single roller, 1/2" pitch
Cylinder head 10185087 Same as ZZZ Same as ZZZ Same as ZZZ 12556463
Valvetrain "Chrome silicon springs,
85lb seat pressure" Same as ZZZ Same as ZZZ "Same as ZZZ with
reduced mass retainers,
exhaust valve stem
seals" "LT4 lightweight retain-
ers, ovate springs, 100lb
seat pressure"
Pushrod guideplates Nonhardened Same as ZZZ Same as ZZZ Same as ZZZ No guideplates
Rocker covers Silver stamped-steel Same as ZZZ "Black stamped-steel,
revised PCV location" Same as ZZ2 Same as ZZ2
Intake manifold "Dual-plane, high-rise,
Holley four-barrel, 4.5""
overall height" "Same as ZZZ w/ oil filler
hole revision" "Same as ZZ1 with acce-
ssory bracket mounts" Dual-plane with dual-pattern carb flange for Holley and Q-jet, 4.0" overall height Same as ZZ3
Connecting rods 1053 forged-steel "pink" Same as ZZZ Same as ZZZ "Most same as ZZZ,
some forged powdered-
metal" Forged powdered-metal
Crankshaft 1053 forged-steel Same as ZZZ Same as ZZZ Same as ZZZ "Before 12/98: Nodular
iron w/ rolled fillets
12/98-and later: 1053
forged-steel"
Front cover "Stamped-steel, 10 bolts,
bolt-on timing tab" Same as ZZZ Same as ZZZ Same as ZZZ "Composite, 8 bolts,
integral pointer"
Torsional damper 6.75" diameter Same as ZZZ Same as ZZZ 8" diameter 8" diameter, degreed
Small-Block Chevy Bolt-Ons - ZZ4 Power Play
Evolution Of The ZZ 350 Crate Engine
Introduced in 1996, today's ZZ4 crate engine evolved from a long line of ZZ 350s that first debuted back in 1989 with the ZZZ 350, an assembly that arguably began the modern crate engine era. Prior to the ZZZ, GM sold only "service-replacement" short-blocks and long-blocks based on production high-perf engines from the '60s and '70s. By the late '80s, the obsolete engines could no longer be economically machined on a standard production line-hence the birth of the crate motor.
Parts And Prices
Listed below are the major parts used in these tests. Priced Oct. 26, 2008 and subject to change.
Co. Description Part No. Price Source Amt. Price
ARP Bolt Kit, cylinder head, black oxide, hex-head 134-3601 Summit 1 $61.95
Bolt Kit, intake manifold 134-2001 Summit 1 $19.95
Rocker Arm Adjusters, Perma-Loc, 3/8-24 thread, stamped-steel rockers 300-8241 Summit 1 $56.95
Thread Sealer, Teflon, 1.69-fluid oz. tube 100-9904 Summit 1 $8.95
Autolite Spark Plug, 14 mm, 5/8 hex, 0.750 reach, gasket-seat (TFS heads) 3924 Summit 8 $12.00
Fel-Pro Gasket, carb mounting, Holley 4150, open-plenum 1900 Summit 1 $4.95
Front Timing Cover Set 2330 Summit 1 $8.95
Head Gasket, embossed steel shim with precision rubber coating (0.015 thick) 1094 Summit 2 $39.76
Intake Gasket Set, composite with Printoseal, 1.23 x 1.99 1256 Summit 1 $17.95
"Valve-Cover Gasket Set, perimeter-bolt valve covers (TFS heads), silicone rubber with
steel core and steel compression limiters" 1628 Summit 1 $47.95
Gasket, water outlet, plastic/molded rubber 2202 Summit 1 $15.95
GM Engine Assembly, ZZ4 base (long-block) 24502609 Scoggin 1 $3,949.99
Engine Assembly, ZZ4 partial (short-block) 12561723 Scoggin 1 $2,389.85
Engine Assembly, ZZ4 turnkey (complete and ready-to-run) 12499712 Scoggin 1 $4,894.85
Holley Carburetor, 750-cfm, double-pumper, dichromate finish 0-4779C Summit 1 $439.95
Carburetor, 770-cfm, vacuum-secondary, satin finish 0-80770 Summit 1 $399.95
Intake Manifold, dual-plane high-rise, Weiand Stealth Air Strike 8501 Summit 1 $202.95
Intake Manifold, single-plane high-rise, Weiand Team G 7530 Summit 1 $191.95
TFS Camshaft, Track Max, hydraulic roller (0.528/0.539 lift, 230/234 degrees at 0.050) 31403001 Summit 1 $249.95
"Cylinder Heads, Super 23, 195cc intake runner, 64cc CNC chamber, 2.02/160 valves,
perimeter-bolt valve cover pattern, roller cam springs (sold as a pair)" 30400003-CNC Summit 1 $1,399.95
Valve Cover, cast-aluminum, perimeter-bolt (sold as a pair) 31511802 Summit 1 $122.95
BTW
if your doing a SBC to BBC engine swap, you might need this bit of info on frame mounts
Reference GuideEngine
ZZ4 350 Tech Specs
Full Details for GM Performance Parts 24502609
(read carefully as not all parts go with all engine combos, engines range from 350 displacement 355 hp to 383 displacement 500hp combos)
http://www.sallee-chevrolet.com/ChevySm ... 3-425P.cfm
http://www.sallee-chevrolet.com/ChevySm ... 83-500.cfm
The ZZ4 needs no introduction; as GMs most popular crate engine the ZZ4 offers a combination of performance quality and reliability that has made it the only choice for many of todays Hot Rodders. Just imagine a small block with 4-bolt mains a forged steel crankshaft powdered metal connecting rods and 10:1 hypereutectic pistons with offset pins. Throw in a steel roller camshaft (.474 in. intake/.5 10 in. exhaust lift and 208 degrees intake/221 degrees exhaust duration at .050 in.) and top it off with 58cc aluminum cylinder heads with 1.94 in. intake/1.50 in. exhaust valves and LT4 chrome silicon valve springs a GM aluminum dual-plane intake manifold HEI distributor cast iron water pump 8 in. harmonic balancer and automatic transmission flexplate. All together this combo makes 355 HP at 5250 rpm and 405 ft.-lbs. of torque at 3500 rpm
Block Part Number:10105123
Block Type:Cast iron with 4-bolt main caps
Bore x stroke (in):4.00 x 3.48
Camshaft duration (@.050 in):208 degree intake / 221 degree exhaust
Camshaft lift (in):.474 intake / .510 exhaust
Camshaft Part Number:10185071
Camshaft type:Steel hydraulic roller
Compression ratio:10:1
Connecting Rod Part Number:10108688
Connecting rods Type
owdered metal steelCrankshaft Part Number:12556307
Crankshaft Type:Forged steel
Cylinder head Part Number:12556463
Cylinder head Type:Aluminum; 58cc chambers
Displacement (cu in):350
Engine Name:ZZ4 350:
Engine type:Chevy small-block V-8
Ignition timing:10 degree BTDC @ 800 rpm 32 degree total @ 4000 rpm with vacuum advance disconnected
Maximum rpm:5800
NOTE
istributor with melonized steel gear MUST be used with long blocks and partial engines with steel camshafts, or engine damage will occur.Piston Part Number:10159436
Pistons Type:High-silicon aluminum with offset pins
Recommended fuel:92 octane
Rocker arm ratio:1.5:1
Rocker arms Part Number:10089648
Rocker arms Type:Stamped steel
Valve size (in):1.94 intake / 1.50 exhaust
http://www.gmhorsepower.com/350-ZZ4-Turn-Key.php
http://www.hotrod.com/techarticles/engi ... index.html
ZZZ ZZ1 ZZ2 ZZ3 ZZ4
Part No. 10134338 10185025 10185025 10185072 "24502609 (long-block)
12561723 (short-block)
12499712 (turnkey)"
Year introduced 1989 1991 1992 1993 1996
Rated horsepower 345 345 345 345 355
Rated torque 387 387 387 387 405
Compression ratio 9.8:1 9.8:1 9.8:1 9.8:1 10.0:1
Piston material "Cast hypereutectic
aluminum" Same as ZZZ Same as ZZZ Same as ZZZ Same as ZZZ
Piston top "Flat-top with ""four eye-
brow"" valve reliefs" Same as ZZZ Same as ZZZ Same as ZZZ "Flat-top with machined
valve reliefs"
Piston pins No offset Offset Offset Offset Offset
Camshaft type Hydraulic roller Hydraulic roller Hydraulic roller Hydraulic roller Hydraulic roller
Camshaft specs "0.235°/0.235°,
0.480""/0.480""" Same as ZZZ Same as ZZZ "0.208°/0.221°,
0.474""/0.510""" Same as ZZ3
Timing chain Single roller, 1/2" pitch Butt link Butt link Single roller, 1/2" pitch Single roller, 1/2" pitch
Cylinder head 10185087 Same as ZZZ Same as ZZZ Same as ZZZ 12556463
Valvetrain "Chrome silicon springs,
85lb seat pressure" Same as ZZZ Same as ZZZ "Same as ZZZ with
reduced mass retainers,
exhaust valve stem
seals" "LT4 lightweight retain-
ers, ovate springs, 100lb
seat pressure"
Pushrod guideplates Nonhardened Same as ZZZ Same as ZZZ Same as ZZZ No guideplates
Rocker covers Silver stamped-steel Same as ZZZ "Black stamped-steel,
revised PCV location" Same as ZZ2 Same as ZZ2
Intake manifold "Dual-plane, high-rise,
Holley four-barrel, 4.5""
overall height" "Same as ZZZ w/ oil filler
hole revision" "Same as ZZ1 with acce-
ssory bracket mounts" Dual-plane with dual-pattern carb flange for Holley and Q-jet, 4.0" overall height Same as ZZ3
Connecting rods 1053 forged-steel "pink" Same as ZZZ Same as ZZZ "Most same as ZZZ,
some forged powdered-
metal" Forged powdered-metal
Crankshaft 1053 forged-steel Same as ZZZ Same as ZZZ Same as ZZZ "Before 12/98: Nodular
iron w/ rolled fillets
12/98-and later: 1053
forged-steel"
Front cover "Stamped-steel, 10 bolts,
bolt-on timing tab" Same as ZZZ Same as ZZZ Same as ZZZ "Composite, 8 bolts,
integral pointer"
Torsional damper 6.75" diameter Same as ZZZ Same as ZZZ 8" diameter 8" diameter, degreed
Small-Block Chevy Bolt-Ons - ZZ4 Power Play
Evolution Of The ZZ 350 Crate Engine
Introduced in 1996, today's ZZ4 crate engine evolved from a long line of ZZ 350s that first debuted back in 1989 with the ZZZ 350, an assembly that arguably began the modern crate engine era. Prior to the ZZZ, GM sold only "service-replacement" short-blocks and long-blocks based on production high-perf engines from the '60s and '70s. By the late '80s, the obsolete engines could no longer be economically machined on a standard production line-hence the birth of the crate motor.
Parts And Prices
Listed below are the major parts used in these tests. Priced Oct. 26, 2008 and subject to change.
Co. Description Part No. Price Source Amt. Price
ARP Bolt Kit, cylinder head, black oxide, hex-head 134-3601 Summit 1 $61.95
Bolt Kit, intake manifold 134-2001 Summit 1 $19.95
Rocker Arm Adjusters, Perma-Loc, 3/8-24 thread, stamped-steel rockers 300-8241 Summit 1 $56.95
Thread Sealer, Teflon, 1.69-fluid oz. tube 100-9904 Summit 1 $8.95
Autolite Spark Plug, 14 mm, 5/8 hex, 0.750 reach, gasket-seat (TFS heads) 3924 Summit 8 $12.00
Fel-Pro Gasket, carb mounting, Holley 4150, open-plenum 1900 Summit 1 $4.95
Front Timing Cover Set 2330 Summit 1 $8.95
Head Gasket, embossed steel shim with precision rubber coating (0.015 thick) 1094 Summit 2 $39.76
Intake Gasket Set, composite with Printoseal, 1.23 x 1.99 1256 Summit 1 $17.95
"Valve-Cover Gasket Set, perimeter-bolt valve covers (TFS heads), silicone rubber with
steel core and steel compression limiters" 1628 Summit 1 $47.95
Gasket, water outlet, plastic/molded rubber 2202 Summit 1 $15.95
GM Engine Assembly, ZZ4 base (long-block) 24502609 Scoggin 1 $3,949.99
Engine Assembly, ZZ4 partial (short-block) 12561723 Scoggin 1 $2,389.85
Engine Assembly, ZZ4 turnkey (complete and ready-to-run) 12499712 Scoggin 1 $4,894.85
Holley Carburetor, 750-cfm, double-pumper, dichromate finish 0-4779C Summit 1 $439.95
Carburetor, 770-cfm, vacuum-secondary, satin finish 0-80770 Summit 1 $399.95
Intake Manifold, dual-plane high-rise, Weiand Stealth Air Strike 8501 Summit 1 $202.95
Intake Manifold, single-plane high-rise, Weiand Team G 7530 Summit 1 $191.95
TFS Camshaft, Track Max, hydraulic roller (0.528/0.539 lift, 230/234 degrees at 0.050) 31403001 Summit 1 $249.95
"Cylinder Heads, Super 23, 195cc intake runner, 64cc CNC chamber, 2.02/160 valves,
perimeter-bolt valve cover pattern, roller cam springs (sold as a pair)" 30400003-CNC Summit 1 $1,399.95
Valve Cover, cast-aluminum, perimeter-bolt (sold as a pair) 31511802 Summit 1 $122.95
BTW
if your doing a SBC to BBC engine swap, you might need this bit of info on frame mounts