Crate Engine, GM, Chevrolet ZZ 502/502, Base GM # 19433160

Chevrolet ZZ502/502 Base 502ci Crate Engine by Chevrolet Performance

Fully assembled 502ci base long block uses forged rotating components and aluminum oval-port heads.

Chevrolet Performance ZZ502/502 Base is a fully assembled 502-cubic-inch Big Block long block built with a four-bolt cast-iron block, forged-steel crankshaft and rods, forged-aluminum pistons and hydraulic-roller camshaft. It uses aluminum oval-port cylinder heads and is supplied as the base long-block version for builders selecting their own induction and accessory package.

Additional Technical Specifications • Horsepower: 502 @ 5200 rpm • Torque: 567-ft./lbs. @ 4200 rpm • Max Recommended rpm: 5800 • Compression Ratio: 9.6:1 • Block: 10237292 cast-iron, 4-bolt main caps • Crankshaft: 10183723 forged steel • Connecting rods: 10198922 forged steel shot peened, 7/16 bolts • Pistons: 12533507 forged aluminum • Piston rings: 12514293 • Camshaft: 12366543 hydraulic roller, lift .527"I, .544"E., duration @ .050" 224"I, 234"E • Timing chain: 3891519 single roller • Cylinder heads: 12363390 aluminum oval port 100cc 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 flange • Distributor: 1101067 HEI • Starter: 9000852 gear reduction • Water pump: 14058915 aluminum • Valve lash: Zero • Spark plugs: #4 Rapid fire gap .035 R43XLS gap .035 • Fuel: 92 octane • Ignition timing: 8 BTDC @ 800 rpm 36 total @ 5000 rpm