|
|
|
|
ZZ 502 Crate Engine (Base) Off Road with Aluminum Heads 12371204
Description
|
The king of all big block crate engines is the ZZ 502/502, with torque and horsepower that will have you grinning and streetable manners that have your competition wondering what hit them. The ZZ 502/502 represents our latest and best efforts to develop awe inspiring big block power in a dependable, durable and driveable big block crate engine.
With its big valve aluminum heads, roller camshaft and complete dyno tuned induction and ignition system, this is as close as you will come to a custom built 502 at crate engine prices. And for those that like to grind on heads, change cams, mill for compression or whatever, we've left it only partially assembled. Make no mistake, everything you need is there, but you don't need to disassemble anything to make head mods or an intake swap. It really is the best of both worlds, bolt it together and go, or tweak it to meet your specific needs. It''s like someone at GM Performance Parts has been there, and we have.
The ZZ 502/502 makes extensive use of aluminum to keep weight down. Including aluminum heads, intake, water pump, and valve covers. Additionally, this king of the crate engines is full of heavy duty parts, to ensure that it will be making awesome power for a long, long time. With its forged aluminum pistons, forged shot peened steel connecting rods with 7/16" bolts, forged steel crankshaft, four bolt main block, stainless steel valves, 6 quart oil pan, and windage tray, the ZZ 502/502 seems more like a custom race engine than a crate engine. With a 5800 rpm redline it might just feel more like a custom race engine than a crate engine too.
Available as a long block kit or a complete engine kit, the ZZ 502/502 is designed to meet your needs. The base kit includes a fully assembled short block with 2.25" intake aluminum heads, valvetrain, aluminum valve covers, torsional damper and 14" automatic transmission flexplate. The complete engine kit adds an aluminum intake manifold, 850 cfm carb, complete ignition system, gear reduction starter and aluminum water pump. Both kits include hardware and gaskets for all parts included in the particular kit. Finally "some assembly required" is a good thing.
The ZZ 502/502 is not intended for marine use, and should only be used in 1976 and earlier pre-emissions street vehicles or any year off road vehicles. Chevelle installations may require a different oil pan.
Service Parts Listing
ZZ 502/502 Technical Information
Horsepower ..................... 502 @ 5200 RPM
Torque .......................... 567 Ft. Lbs. @ 4200 RPM
Max. Recommended RPM ..... 5800
Compression Ratio ............. 9.6:1
Block ............................ 10237292 Cast iron - Four bolt maincaps
Crankshaft ...................... 10183723 Forged steel
Connecting Rods ............... 10198922 Forged steelShot peened, 7/16" bolts
Pistons .......................... 12533507 Forged Aluminum
Piston Rings .................... 12524293
Camshaft ........................ 12366543 Hydraulic rollerLift: .527" I, .544" E.Duration @ .050" 224° I, 234° E.
Timing Chain ................... 3891519 Single roller
Cylinder Heads ................. 12363390 Aluminum oval port110cc Combustion chambers
Intake Valves ................... 12366987 2.25" Stainless Steel
Exhaust Valves .................. 12366988 1.88" Stainless Steel
Valve Springs ................... 12462970
Rocker Arms .................... 12368082 1.7:1 Stamped Steel
Intake Manifold ................. 12363407 Aluminum Holley flange
Carburetor ...................... 12366996 Holley 850cfm
Distributor ....................... 1104067 HEI
Starter ........................... 9000852 Gear Reduction
Water Pump .................... 14058915 Aluminum
Valve Lash ...................... Zero
Spark Plugs ..................... #4 Rapid Fire Gap .045R43XLS Gap .045
Fuel ............................. 92 Octane
Ignition Timing .................. 8° BTDC @ 800 RPM36° Total @ 5,000 RPM
Technical Notes:
Distributor P/N 1104067 or melonized distributor gearP/N 10456413 must be used on all crate engines with steel camshafts.
• The clutch linkage boss is cast in this block, but it is not drilled or tapped.
• When using cast iron exhaust manifolds the lower head bolt may need tobe replaced with bolt with shorter heads. Chevelle installations may require a different oil pan.
Service Parts Listing Terms and Conditions
Warranty Information
GM Performance Crate Engine Start-up Instructions
|
|
Products Accessories for ZZ 502 Crate Engine (Base) Off Road with Aluminum Heads 12371204
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|