BBC 375cc Alum Cyl Head Jackel Series Assembled

The BBC 375cc Aluminum Cylinder Head Jackal Series Assembled is a fully assembled Big Block Chevy performance cylinder head designed for high-RPM engine builds and competition applications. This cylinder head is engineered for serious engine builders and performance enthusiasts who require a proven, ready-to-install solution for their Big Block Chevy engines.

Constructed from precision aluminum, this head features 2.350-inch intake and 1.880-inch exhaust valves, providing the necessary valve sizing for efficient fuel mixture scavenging at elevated engine speeds. The combustion chamber volume is 127 cc, supporting compression ratios suitable for naturally aspirated BBC platforms. The cylinder head's design includes an angle plug configuration that reduces mass while maintaining thermal stability, which is critical for maximizing durability and peak horsepower output.

This assembled cylinder head is ideal for engine builders, machine shops, and performance enthusiasts focused on drag racing, street performance, or engine swap applications. The factory assembly eliminates port matching and valve installation variables, allowing builders to concentrate on block preparation, camshaft selection, and system optimization.