Chevrolet Performance will debut the new Z26 crate engine at the SEMA Show in Las Vegas next month.
Developed with modern technologies, including a high-rpm valvetrain, the new ZZ6 crate engine uses updated Fast Burn cylinder heads with beehive-style valve springs inspired by the LS engine family – a feature that enhances high-rpm capability.
As a result, the V8 crate engine achieves 405hp and 405lb-ft (548Nm) of torque, more than any factory produced 350 (5.7-liter) engine ever installed in a Chevrolet production vehicle and one of the most powerful 350 Small Block-based crate engines in the nearly 27-year history of the “ZZ” lineup.
The engine also features a pair of high-flow, Fast Burn-style aluminum cylinder heads, with large intake runners and 2.00/1.55-inch valves, which enable the ZZ6 to flow big air. The engine also uses an aggressive hydraulic roller camshaft, with .474/.510-inch lift and 208/221-degrees duration, that supports the engine’s high-rpm airflow capability, while maintaining excellent low-speed drivability.
A forged steel crankshaft and durable, quiet high-silicon aluminum pistons housed in a four-bolt-main cast iron block round out the rotating assembly. Finally, a pair of all-new, aluminum valve covers caps off the new crate engine.
The ZZ6 crate engine is offered in Turn Key and Base versions. The Base kit (P/N 19351532) includes a single-plane aluminum intake, distributor, water pump, damper and flexplate, but requires the carburetor and other accessories to be added.
The Turn Key kit (P/N 19351533) includes the carburetor, an air cleaner that matches the unique valve covers, the starter, distributor, alternator and additional accessories such as the air conditioning compressor and front-end accessory drive system.