AFR SB-Chevy LS1 Aluminum Cylinder Heads

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If you need a snake charmer for that pesky
neighborhood Mustang Cobra, look no further.

For the ultimate street LS1/LS6 aluminum cylinder head, AFR's 205cc emission legal head are your only choice. Specifically designed for 1995 to present Gen-3 Chevy Corvettes, Camaros, and trucks. The Airflow Research LS1 head offers unmatched flow performance (300 cfm at .600 lift) and features 2.020'' intake and 1.600'' exhaust valves with AFR's iron ductile interlocking valve seats. With only 205cc port volume (same as stock LS1 head) this is an incredible 70 cfm increase over stock casting creating unbelievable port velocity and performance. The 205cc is ideal for normally aspirated 346ci to 396ci. It is available with 66cc combustion chamber. AFR's LS1 is a direct bolt-on, no special parts required. Structural features like AFR's trademark 3/4" thick head deck, a must for blown and nitrous applications, reinforced rocker stud bosses, and thick wall runners for durability. An exclusive modern combustion chamber design with double quench pad area helps the LS1 generate huge low and mid lift airflow numbers.

For the maximum street/strip LS1/LS6 aluminum cylinder head AFR's all new 225cc, emission-legal head E/O #D250-4 is the best choice. Specifically designed for 1995 to present Gen-3 Chevy Corvettes, Camaros, and trucks, AFR's LS1 head offers unmatched flow performance and features 2.080'' intake and 1.600'' exhaust valves with AFR's iron ductile interlocking valve seats. The 225cc is ideal for normally aspirated 396ci to 427ci. For a wild 346ci, the 225 is a good choice, but some low RPM loss of torque might occur. It is available with 72cc combustion chambers. An affordable as-cast version is also available. AFR's LS1 is a direct bolt-on, no special parts required. Structural features like AFR's trademark 3/4" thick head deck, a must for blown and nitrous applications, reinforced rocker stud bosses, and thick wall runners for durability. An exclusive modern combustion chamber design with double quench pad area helps the LS1 generate huge low and mid lift airflow numbers.

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