10.4L ZZ632 Motor And Transmission

This package features Brand New ZZ632 engine, Chevrolet Performance’s most powerful crate engine, delivering 1,004 horsepower and 876 lb-ft of torque. The engine features a cast iron Bowtie block with 4-bolt main caps, forged 4340 steel crankshaft, aluminum spread-port cylinder heads with 70cc chambers, 2.450″ intake and 1.800″ exhaust titanium valves, a billet steel hydraulic roller camshaft, 12.0:1 compression ratio, electronic fuel injection, and a 58X crank-triggered coil-near-plug ignition.

Paired with the 4-speed SuperMatic 4L75E-R automatic transmission designed to handle the ZZ632 engine’s massive torque output, features a 0.75:1 overdrive for improved fuel efficiency and is built with heavy-duty components to withstand high-performance driving.