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  1. Air Flow Research | High Performance Cylinder Head Specialists

    You’ll be first to know about Air Flow Research products, discounts and special events!

  2. Cylinder Heads - Air Flow Research

    AFR’s 180cc "Street" heads are a cost effective performance choice over re-worked factory heads. They feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings …

  3. 24° Magnum - Air Flow Research

    24° Magnum BIG BLOCK CHEVY HEADS ARE BACK IN STOCK WITH REDUCED LEAD TIMES! ORDER YOURS NOW TO GET READY FOR 2024 RACING!

  4. Renegade CNC - Air Flow Research

    Recommended for race applications and very agressive street/strip builds operating up to 7400 RPM. Maximum intake flow potential @0.750" lift is 331 CFM. Test conducted at 28" of water …

  5. Small Block Chevy - Air Flow Research

    Shop Small Block Chevy PartsFel-Pro: 1004 Bore (in): 4.190 in. Bore (mm): 106.426mm Gasket Material: Steel core laminate Compressed Thickness (in): 0.041 in. Compressed Volume (cc): …

  6. Air Flow Research

    Air Flow Research’s design, engineering, and manufacturing technology never rests. A leader today, Air Flow Research is investing in the horsepower of tomorrow with new manufacturing …

  7. Enforcer As Cast - Air Flow Research

    Shop Enforcer As Cast PartsAFR's 200cc SB Chevy Enforcer Cylinder heads feature our permanent mold “As-Cast” technology surfaces on the intake runners, exhaust runners and …

  8. Air Flow Research | Catalog

    join our email list You’ll be first to know about Air Flow Research products, discounts and special events!

  9. Cylinder Heads - Air Flow Research

    Recommended for race applications and very agressive street/strip builds operating up to 7400 RPM. Maximum intake flow potential @0.750" lift is 331 CFM. Test conducted at 28" of water …

  10. Cylinder Heads - Air Flow Research

    The intake port is raised .500 with the valves rolled to 18° resulting in unparalleled under the curve flow numbers..... don’t be fooled by just peak flow numbers.