For those of you who want your ZZ502/502 already assembled, GM Performance Parts has just what you need. The ZZ502/502 Deluxe crate engine includes the entire engine, from carb to oil pan and comes assembled from the factory. It includes a Holley 870-cfm four barrel carburetor, dual plane intake manifold CNC port matched to the oval port heads, starter, distributor, plug wires and water pump.

The ZZ502/502 Deluxe crate engine offers you a GM Performance Parts tested and validated 502 Horsepower/567 lb.-ft. of torque.

The ZZ502/502 comes with our aluminium oval port, big valve street heads that flow enough air to satisfy the demands of the hungry 4.47" bores and 4.00" stroke crankshaft. To ensure a long and productive life, this performance big block is based on the Gen 6 block with four bolt mains, a forged steel crank, forged steel rods and forged aluminium 9.6:1 pistons.