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- AFR LS Chevy 210cc LSX Mongoose Street Aluminum Cylinder Heads
AFR - Airflow Research LSX 205cc As Cast FOR PORTERS ONLY No porting Valve Job or Guides Honed 64cc chambers NO PARTS
033-1541

LS 15 Deg 205cc Porters Casting 64cc Chambers
Specifications:
The Small Port, High Velocity Torque Monster! For the ultimate high performance street LS1/LS2/LS6 aluminum cylinder head AFR's all new 210cc emissions legal (CARB EO #D250-4) heads are your only choice. Specifically designed for 1997 to present Gen-3 Chevy Corvettes, Camaros, and trucks using a 3.900'' cylinder bore. AFR's LSX cylinder 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 70CFM increase over stock casting, creating unbelievable port velocity and performance. This 210cc cylinder head is ideal for normally aspirated 346-396ci engines. It features a 66cc combustion chambers and the LSX 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 LSX generate huge low- and mid-lift airflow numbers. If you need a snake charmer for that pesky neighborhood ''Cobra'' look no further. . Installation Notes: LSX bead locks and aftermarket bead locks are not interchangeable. GM made their bead lock radius and depth different. AFR locks are the same as GM LSX.
Hydraulic roller cams in ''LS'' Gen III engines typcially experience valve float at 6600-6800 RPM's. If you are using aftermarket rocker arms, plan on running over .600'' gross valve lift, or if you are revving beyond 6600 RPM valve float will become prominent. AFR suggests you upgrade your springs to AFR p/n 033-8019. This upgrade spring has higher seat and open pressures (155/410+) to better reduce the risk of valve float in more aggressive applications.
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