AFR BBC 300cc Oval Port Aluminum Cylinder Heads CNC Chevy Big Block 540 3680. This product data sheet is originally written in English. AFR Direct Master Warehouse Distributor - All AFR Products Available. AFR 300cc BBC Oval Cylinder Heads. AFR's 300cc heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. Recommended for aggressive street, street/strip or race builds with displacements up to 540 cubic inches, operating up to 6800 RPM. Component upgrades and machining options are available to customize AFR Heads to your specific build. AFR Part # 3680. There are many different options available for AFR heads, please view the details…

AFR Direct Master Warehouse Distributor - All AFR Products Available. AFR 300cc BBC Oval Cylinder Heads. AFR's 300cc heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. Recommended for aggressive street, street/strip or race builds with displacements up to 540 cubic inches, operating up to 6800 RPM. Component upgrades and machining options are available to customize AFR Heads to your specific build. AFR Part # 3680. There are many different options available for AFR heads, please view the details section below for the details on these heads. For the many other AFR heads available, and options such as upgrading springs or retainers.…