Chevrolet Performance Parts

Chevrolet has given The Ultimate Street 502 a work over. The result is 28 more HP then before from 602 HP to 630 HP putting The Ultimate Street 502 back on top of the 502 street engine pack. This is a Chevrolet exclusive engine. Keys - allengine, scperformanceeng, gmperformanceeng, gmgoodwrencheng. Use allengine for a complete list of all three.
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ZZ 502/502 NAVIGATION

ZZ 502/502 Base Long-Block Kit	ZZ 502/502 Base Long-Block Kit Assembled
ZZ 502/502 Premium Engine Kit	ZZ 502/502 Premium Engine Kit Options
ZZ 502/502 Premium Engine Kit Assembled	Chevrolet Ultimate Street 502
Chevrolet Ultimate Street 502 Dyno Pictures	Chevrolet Ultimate Street 502 Pictures
Chevrolet Ultimate Street 502 Parts Pictures	ZZ 502/502 Partial Engine Block
Chevrolet Fuel Injected 502 RPM PRO-FLO EFI	Ram Jet 502
HT 502 Tow Truck Engine	HO 502 Engine Assembly
502 Retro-Kit 1991 - 1993 P/U Conversion Kit	Super Street 502 Dyno Pictures
Super Street 502 Main Page	Super Street 502 Pictures

We have more GM and Chevrolet Performance Engines available. We have more GM Stock Replacement Long-block Goodwrench Engines available. We have more “Gen 3” and “Gen 4” Design Engines available. (LS1, LS2, LS6, LQ4, LS7)

THE ULTIMATE STREET 502 DISCRIPTION

The Ultimate Street 502 - P/N SC502US
630 HP @ 5,600 RPM, 605 FT/LBS @ 4,400 RPM
Option Z For Part #12371171 502ci 502 Horsepower Premium Engine Kit

America’s favorite big block is now available with 630 HP. Chevrolet’s Race Shop picked all the special parts to give this improved version of The Ultimate Street 502 more power, more torque, heavy duty strength, and more reliable performance. All these improvements puts The Ultimate Street 502 back on top of the street 502 engine pack!

THE ULTIMATE STREET 502 TECHNICAL INFORMATION

Horsepower:	630 @ 5,600 RPM
Torque:	605 @ 4,400 RPM
Max. Rec. RPM:	6,000 RPM
Comp. Ratio:	10.2:1
Block:	GM P/N 10237292, Cast Iron, Four Bolt Main
Crankshaft:	GM P/N 10183723, Forged Steel, 1-Piece Rear Seal, Externally Balanced, Nitrided & Cross Drilled.
Connecting Rods:	Manley Sportsmaster P/N 14131-8, Forged Aircraft Quality 4340 Material, 8740 Alloy 7/16” (190,000 psi) ARP Cap Screws, Premium Amco Pin Bushings, Profiled, Shot Peened
Pistons:	SRP P/N 139518 Forged, 4032 High Silicon Alloy For Tighter Piston To Wall Clearance, Floating Pin, Smooth Dome & Radius Valve Relief
Piston Rings:	SRP P/N J100F8-4470-5, File Fit
Camshaft:	Crane P/N 168741, Hyd. Roller, Lift (.610” I, .632” E), Duration @ .050” (236° I, 244° E)
Timing Chain:	GM P/N 12371053, HD Roller Design
Lifters:	Crane P/N 16535-16, Long Travel, Designed For High Lift Camshafts
Cylinder Heads:	Edelbrock Victor JR. P/N 6040, CNC, Rectangular Port, 112 cc Combustion Chambers
Intake Valves:	2.25” Stainless Steel, 11/32 Stem
Exhaust Valves:	1.90” Stainless Steel, 11/32”
Valve Springs:	Crane P/N 99895-16 Dual Valve Springs
Rocker Arms:	Crower P/N 73605, Stainless Steel 1.7 Ratio
Intake Manifold:	Edelbrock P/N 7562, Air Gap
Carburetor:	Speed Demon P/N 1563010, 850 CFM, Mechanical Secondaries, Fuel Line Kit P/N 140006
Distributor:	MSD P/N 85551 Billet, MSD 8252 Coil, Digital-6 Plus Ignition Control Box.
Starter:	GM P/N 9000852, Gear Reduction
Water Pump:	Your choice of Long Edelbrock P/N 8851 or Short Edelbrock P/N 8850
Spark Plugs:	#4 Rapid Fire
Plug Wires:	8 mm Red Plug Wires
Fuel:	92 Octane with Moroso #65590 octane booster or Racing Fuel Recommended. We can supply the Moroso octane booster.
Oil Pan:	Your Choice, Moroso Or Milodon 6 Quart Pan, Some Special Pans Available for 55-57
Valve Cover:	P/N 68343, Moroso Fabricated Aluminum, Can Be Substituted For Less Or Equal Value Covers
Damper:	Fluidampr, 8” External Balance
Dyno Tested:	This Engine Is Tested & Calibrated Before Delivery
Fasteners:	ARP Head Bolts, Rocker Studs, and Intake Bolts.
Note: Parts as well as prices and specifications are subject to change. Please call and talk to one of our parts salespersons prior to ordering for the most current information.

THE ULTIMATE STREET 502 DYNO RESULTS

RPM	Torque	HP	RPM	Torque	HP	RPM	Torque	HP	RPM	Torque	HP
2279	523	227	3200	560	341	4200	599	479	5200	600	594
2400	522	239	3400	564	365	4400	605	507	5400	609	625
2600	537	266	3600	572	392	4600	607	532	5600	595	630
2800	557	297	3800	580	420	4800	612	560	5800	582	642
3000	559	320	4000	596	454	5000	609	580	6000	567	644