For the maximum high performing street/strip LS1/LS2/LS6 aluminum cylinder heads, try AFR's street legal (CARB # D250-4) 225cc LS1 Mongoose strip heads. They are specifically designed for Gen III Chevy Corvettes, Camaros, and trucks. AFR's LS1 cylinder heads offer unmatched flow performance and feature 2.080 in. intake and 1.600 in. exhaust valves with AFR's ductile iron interlocking valve seats. These heads are ideal for engines up to 427 CID. 65cc combustion chambers. Structural features like Air Flow Research's trademark 3/4 in. 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 combination chamber design with a double quench pad area helps the LS1s generate huge low and mid-lift airflow numbers.
NOTE : All AFR heads require 99-up center bolt valve covers (not compatible with perimeter bolt valve covers (1997-1998)).
PLEASE NOTE : AFR manufactures cylinder heads on order, meaning when you place the order with us, AFR will begin manufacturing the heads. It takes around 14-18 working days before the heads are available for shipping.