ZZ6 EFI Turn-Key 350ci 5.7L Crate Engine

The Chevrolet Performance ZZ6 EFI Turn-Key Crate Engine offers a blend of modern technology and classic aesthetics, making it ideal for vintage Chevy projects. This 350ci (5.7L) small-block engine (SKU 19433044) is engineered for performance with 420 horsepower at 5800 RPM and 408 lb.-ft. of torque at 4500 RPM. Its electronically controlled port fuel injection system is cleverly disguised within an aluminum intake manifold that visually resembles a traditional carbureted setup, allowing for the use of a standard air cleaner. Internally, the ZZ6 features Fast Burn aluminum cylinder heads known for their efficiency, equipped with large 2.00-inch intake and 1.55-inch exhaust valves. High-rpm performance and durability are further supported by beehive-style valve springs and an aggressive steel hydraulic roller camshaft. This camshaft design balances high-rpm airflow capabilities with excellent low-speed drivability, ensuring a broad powerband. The "Turn-Key" designation signifies a complete package that includes the distributor and damper already installed. Additional included components are the throttle body, starter, air conditioning pump, alternator, and a single-belt Front-End Accessory Drive Kit, simplifying the installation process. Installation notes specify that a 12.750-inch externally balanced, 153-tooth flexplate is required for automatic transmission applications, while an externally balanced flywheel is needed for manual transmissions. This engine is not intended for marine applications. Previous part numbers associated with this engine include 19435447, 19432108, 19419000, and 19418370.