Chevrolet Performance’s 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 horsepower and 567 lb-ft of torque, it demands your full attention and a chassis that is strong enough to harness its frame-straining twisting power.
All ZZ502 crate engines are manufactured with GM’s updated cylinder block casting that is stronger and better supports high-performance applications. A forged crankshaft, along with forged rods and pistons, anchors the bottom end, while our popular oval-port aluminum heads offer excellent airflow characteristics. Torque tops the 500-lb-ft mark by approximately 2500 rpm and doesn’t dip below it until about 5000 rpm.
Our ZZ505/502 Deluxe package comes complete from the oil pan to the carburetor, including an HEI distributor, plug wires, starter, water pump, balancer, and an aluminum intake topped with a Holley 870-cfm four-barrel.
We’ve taken care of the engine’s details. You need to make sure your car can handle the ZZ502/502!
Chevy Big-Block V-8
Displacement (cu. in.):
Bore x Stroke (in.):
4.470 x 4.000
Block (P/N 19170540):
Cast-iron with four-bolt main caps
Crankshaft (P/N 10183723):
Connecting Rods (P/N 19170198):
Forged steel, shot peened
Pistons (P/N 12533507):
Camshaft Type (P/N 12366543):
Camshaft Lift (in.):
.527 intake / .544 exhaust
Camshaft Duration (@.050 in.):
224° intake / 234° exhaust
Cylinder Heads (P/N 12363390):
Aluminum oval port; 110-cc chambers
Valve Size (in.):
2.250 intake / 1.880 exhaust; stainless steel
Rocker Arms (P/N 12368082):
Rocker Arm Ratio:
Distributor (P/N 93440806):
Carburetor (P/N 19170094):
Water Pump (P/N 19168602):
Spark Plugs and Wires:
Starter (P/N 12606096):
Flexplate (P/N 10185034):
Base 8° BTDC, 30° Total
Maximum Recommended rpm:
Already own one, but lost some of the paperwork? We’ve got you covered with downloads and links for some of the more important documents below. You’ll find everything from the vital data about your engine’s capabilities to how to install it into your build, even all of the warranty information should you need to make a claim. And don’t forget, the best way we can make sure to get you the latest information on your specific part is to tell us which one you have by registering your engine. No matter what stage of your build you’re in — from shopping for the right part to that part having turned in a few miles — we have the information you need.
* The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. Click here to see all Chevrolet vehicles' destination freight charges.
***The Manufacturer's Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Includes destination freight charge and gas guzzler tax.
Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet Federal Motor Vehicle Safety Standards and emissions regulations and should not be operated on public roads. Chevrolet Performance customers are responsible for ensuring their use of Chevrolet Performance complies with applicable federal, state, and local laws, regulations, and ordinances. Many parts intended for racing or other “off-highway” use are not designed or tested for crashworthiness or to meet the safety needs of the motoring public, and may adversely affect the original intended performance or handling characteristics of the vehicle. These parts are designed and intended to be used with experts supervising their installation and use, to help assure the proper and safe operation of the vehicle.
To allow you to do an accurate price comparison with prices featured on other Internet sites, GM provides Internet pricing both with and without the Destination Freight Charge (see prices including Destination Freight Charge below). To get full pricing details, go to our Build Your Own section.