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*REMANUFACTURED - GM Warranty Does NOT Apply ZZ502 Partial Engine Intended for Pre-1978 Street Vehicles
This product is no longer available. Please call customer service for assistance at 1-800-345-4545.
- *REMANUFACTURED - GM Warranty Does NOT Apply
- Intended for Pre-1978 Street Vehicles
- Not For Marine Use
- Requires Melonized Distributor Gear
ZZ502 Partial Engine
The DIY Foundation for Big Torque!
The Chevrolet Performance ZZ502 Partial engine is designed for those who need the max, the 502ci Gen VI Chevrolet big-block with roller camshaft. The pistons, rods and crankshaft are the same as Gen V. This engine features a standard deck height block with four-bolt main bearing caps, a 4.00" stroke forged steel crankshaft and 4.47" diameter forged pistons. The compression ratio is a reasonable 8.75:1 when used with 118cc chambers cast iron heads, or 9.6:1 with 110cc chamber aluminum heads. It has 4340 steel connection rods with 7/16 rod bolts. This partial includes block, crankshaft, pistons, flex plate, damper, oil pump, oil pan, front cover and steel hydraulic roller camshaft with lifters!
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ZZ502/502 PARTIAL ENGINE TECH SPECS:
- Engine Type: Chevy Big-Block V-8
- Displacement: 502ci
- Bore x Stroke: 4.470'' x 4.000''
- Block: Cast-iron with four-bolt main caps
- Crankshaft: Forged steel
- Connecting Rods: Forged steel, shot peened
- Pistons: Forged aluminum
- Camshaft Type: Hydraulic roller
- Camshaft Lift: .527'' intake / .544'' exhaust
- Camshaft Duration (@.050 in.): 224° intake / 234° exhaust
- Compression Ratio: 9.6:1 with 110cc combustion chamber cylinder heads
- Flexplate: 14'' diameter, externally balanced
- Maximum Recommended RPM: 5500
- Balanced: External
