BBC 345cc BB3 Xtra Head 2.300in/1.880in Assm.

The BRODIX BB-3 XTRA Series Chevy Cylinder Head, part number 2031016, is an assembled aluminum cylinder head designed for Big Block Chevrolet engines. It features a rolled two-degree valve angle and a 345cc intake runner with a 119cc combustion chamber. This angle plug head comes with 2.300-inch intake valves, 1.880-inch exhaust valves, and 1.645-inch springs for solid roller camshafts. The out-of-the-box version includes CNC ported 119cc combustion chambers, CNC bowls blended, and matched ports, flowing over 390 cfm. Higher flowing CNC ported versions are also available in various port volumes. These cylinder heads are engineered for high-performance applications, offering optimized port shape, port velocity, and advanced technology to enhance engine output.