BBC 365cc BB2 Extra Head 2.300/1.880 Assembled

The BRODIX BBC 365cc BB2 Extra Head 2.300/1.880 Assembled cylinder head is a purpose-built, performance-grade component engineered for big block Chevy applications demanding high flow and reliable combustion chamber geometry. This fully assembled cylinder head combines a 365 cubic centimeter intake port with a compact 119 cubic centimeter chamber, delivering the intake and exhaust valve dimensions (2.300-inch intake, 1.880-inch exhaust) that serious engine builders and performance enthusiasts specify for optimal fuel mixing and scavenging efficiency.

Key specifications include 1.550-inch valve springs designed to manage valve float at elevated RPM levels and an angle-plug configuration that positions the spark plug for superior combustion initiation. Constructed from aluminum for weight reduction without sacrificing structural integrity, this head arrives fully machined and assembled—eliminating setup time and ensuring dimensional consistency. The port volumes and chamber size combine to optimize volumetric efficiency, making this head suitable for naturally aspirated big block engines targeting reliability and sustained power delivery across the RPM band.

Engine builders, restoration specialists, and performance shops selecting a big block Chevy cylinder head for street or strip applications value this head's balanced flow characteristics and proven design. The pre-assembled condition reduces machine shop lead times and ensures that valve seat geometry, spring pocket depth, and port matching meet BRODIX's manufacturing tolerances from receipt. At 47.45 lbs, the aluminum construction supports weight-conscious builds while maintaining the thermal and mechanical properties required for sustained boost or naturally aspirated operation.