BBC 310cc Pro-1 Head 121cc R/P 2.25/1.88 Bare

The BBC 310cc Pro-1 Head 121cc R/P 2.25/1.88 Bare is a high-performance cylinder head designed for big-block Chevrolet engine builders seeking enhanced airflow and combustion efficiency. This bare head is ideal for both street performance enthusiasts and competition-focused builders who require precision-engineered components for their high-displacement engines.

Featuring a 310cc intake runner volume and a 121cc combustion chamber, this head is optimized for peak volumetric efficiency at mid to high RPM ranges. The design incorporates advanced port geometry and flow-tested features to maximize air velocity while minimizing turbulence, ensuring refined breathing characteristics for enhanced performance.

This BBC head is particularly beneficial for builders working on 454 to 502 cubic inch engines, allowing for flexible compression ratio tuning with various piston designs. Supplied as a bare casting, it is ready for custom valve train configurations and final machine work tailored to specific engine setups.