AFR Heads, 1520 AFR LSX 210 Mongoose Heads, LS, Bare Heads, 66cc

AFR LSX Mongoose Street Heads are for the ultimate street LS1/LS2/LS6 aluminum cylinder head. AFR's all new 210cc emission legal cylinder heads E/O # D250-4 are your only choice. Specifically designed for 1997 to present Gen-3 Chevy Corvettes, Camaros, and trucks. SFR's LS1 head offers unmatched flow performance (302 CFM at .600 lift) and features 2.020 intake and 1.600 exhaust valves with AFR's iron ductile interlocking valve seats. With only 210cc port volume (same as stock LS1 head) this is an incredible 70 CFM increase over stock casting creating unbelievable port velocity and performance. The 210cc is ideal for normally aspirated 346 C.I. It is available with 66cc combustion chambers. AFR's LS1 is a direct bolt on, no special parts required. Structural features like Air Flow Research's trademark 3/4" thick head deck, a must for blown and nitrous applications, reinforced rocker stud bosses, and thick wall runners provide unparalleled durability. An exclusive new modern combustion chamber design with double quench pad area helps the LS1 generate huge low and mid lift airflow numbers. If you need a snake charmer for that pesky neighborhood "Cobra Mustang" look no further.