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

The BRODIX BBC 345cc BB3 Xtra Head 2.300in/1.880in Assembly is a premium cylinder head solution designed for serious big-block Chevy engine builders and performance enthusiasts. This fully assembled head is engineered for both street and strip applications, ensuring maximum flow and durability for high-performance engines.

The BB3 Xtra designation indicates an enhanced chamber design optimized for the 345cc combustion volume, featuring intake and exhaust port configurations that maximize volumetric efficiency. The 2.300-inch intake valve and 1.880-inch exhaust valve specifications are precisely calculated to maintain valve seat integrity under high-load conditions, making this head suitable for high-rpm applications.

Ideal for BBC (big-block Chevrolet) builds ranging from 427 to 454 displacements, this cylinder head assembly offers superior flow characteristics compared to factory castings. Professional rebuilders, engine shops, and dedicated hobbyists will appreciate the bolt-and-go nature of this fully assembled head, which reduces assembly time and eliminates the need for custom porting.