AFR BBC 305cc Rectangle Port Aluminum Cylinder Heads Chevy Big Block 509 3050-1. This product data sheet is originally written in English. AFR Direct Master Warehouse Distributor - All AFR Products Available. AFR 305cc BBC Rectangle Cylinder Heads. AFR's 305cc rectangle port heads feature partially ported, full CNC Chambers with no parts, A356 aluminum castings and high quality components throughout. Recommended for moderate street, or street/strip builds with displacements up to 509 cubic inches, operating up to 6500 RPM. Also available with 100% CNC chambers for increased air flow (see chart). Component upgrades and machining options are available to customize AFR Heads to your specific build. AFR Part # 3050-1.…

AFR Direct Master Warehouse Distributor - All AFR Products Available. AFR 305cc BBC Rectangle Cylinder Heads. AFR's 305cc rectangle port heads feature partially ported, full CNC Chambers with no parts, A356 aluminum castings and high quality components throughout. Recommended for moderate street, or street/strip builds with displacements up to 509 cubic inches, operating up to 6500 RPM. Also available with 100% CNC chambers for increased air flow (see chart). Component upgrades and machining options are available to customize AFR Heads to your specific build. AFR Part # 3050-1. There are many different options available for AFR heads, please view the details section below for the details on these heads. For…