GM Performance 19166393 - GM Performance Parts ZZ427/480HP Engine

Outstanding Performance
Even on Low Octane Fuel

Few engines conjure thoughts of greatness like the legendary Chevy big block 427. It powered some of the most storied cars in high-performance history. New to the GM Performance Parts lineup, the ZZ427 crate engine maintains the good, original characteristics while adding modern touches: updated 4-bolt main cast iron block, forged internal rotating assembly, 10.1:1 compression ratio, and aggressive hydraulic roller cam. The engine's top half is the same as the Limited Edition Anniversary 427; the intake is a matching high-flow oval port aluminum piece. With 490 ft/lbs torque and a conservative 480 HP rating, this is still one of the best crate engines for nearly any big block application.

SPECIFICATIONS