Chevrolet Performance Will Debut New 405HP Z26 Crate Engine At SEMA Show

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.

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