GM Performance 12371171 - GM Performance Parts ZZ502 Engines

The Rat with 502 Horsepower and 567 ft/lbs of Torque The king of all big block crate engines is the ZZ502. It's as close as you'll get to a custom-built 502 at a crate engine price. With heavy-duty components, the ZZ502's power and durability are ensured.

