ZZ502 Chevy Performance Base Crate Engine
508 hp @ 5,200 rpm / 580 lb.-ft. @ 3.600 rpm
The Chevrolet Performance ZZ502/502 is one of the industry’s benchmark crate engines, offering excellent value with a proven combination of performance that is suitable for the street or strip. With more than 500 hp and 580lb.-ft. of torque, it demands your full attention and a chassis that is strong enough to harness its frame-straining twisting power.
We rate the ZZ502/502 Base Engine at 508 horsepower and 580 lb-ft of torque when it is finished with Chevrolet Performance aluminum intake manifold (P/N 12363406) and Holley 870-cfm carburetor (P/N 19170094). The other parts you need to complete the engine — including chrome dress-up parts — are available from Karlperformanceparts.com
Thanks to the Chevy combination of high-flow aluminum oval-port cylinder heads with 2.25/1.88-inch valves and a hydraulic roller camshaft designed to support low-rpm torque production, this torque monster tops the 500 lb.-ft. mark by approximately 2,500 rpm and doesn’t dip below it until about 5,000 rpm. It also features a brand-new, latest-generation block casting with four-bolt main caps and an all-forged rotating assembly for exceptional strength and durability.
Nothing is quite as satisfying as building your own high-performance Big Block. The GM ZZ502/502 Base crate motor package includes includes the partial engine assembly, cylinder heads, valvetrain and valve covers. Every part is engineered to work together to deliver 502 horses!
19331576 Chevrolet Crate Motor
Nothing is quite as satisfying as building your own high-performance Big-Block. With the ZZ502 Base Kit. Every part is engineered to work together to deliver 502 horses!
Recommended Transmission: SuperMatic™ 4L85-E Four-Speed Automatic P/N 19300175
Part Number: 19331576
Engine Type: Chevy Big-Block V-8
Displacement (cu in): 502
Bore x Stroke (in): 4.470 x 4.000
Block (P/N 19170540): Cast-iron with 4-bolt main caps
Crankshaft (P/N 10183723): Forged steel
Connecting Rods (P/N 19170198): Forged steel, shot peened
Pistons (P/N 12533507): Forged aluminum
Camshaft Type (P/N 12366543): Hydraulic roller
Camshaft Lift (in): .527 intake / .544 exhaust
Camshaft Duration (@.050 in): 224° intake / 234° exhaust
Cylinder Heads (P/N 19331425): Aluminum oval port; 110cc chambers
Valve Size (in): 2.250 intake / 1.880 exhaust;
Compression Ratio: 9.6:1
Rocker Arms (P/N 12675724): Stamped steel
Rocker Arm Ratio: 1.7:1
Recommended Fuel: Premium pump
Ignition Timing: 32° Total at 4,000 rpm
Maximum Recommended rpm: 5,800
Flexplate (P/N 10185034): 14"
NOTE: Distributor with melonized steel gear MUST be used with
long-blocks and Partial engines with steel camshafts, or engine
damage will occur
Supersedes old GM P/N 12496963
Chevrolet Performance Crate Engines include a 24-month or 50,000-mile (80,000 kilometer) limited warranty.