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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 …

AFR's 185cc SB Ford Enforcer Cylinder heads feature our Permanent Mold “As-Cast” Technology surfaces on the intake runners, exhaust runners and combustion chambers that allows for …

Shop 24° Magnum PartsRecommended for radical "Pro Street" or racing applications with displacements up to 605 cubic inches, operating at or below 7400 RPM. AFR's 357cc cylinder …

Our largest and highest flowing head for the small block ford is the best in-line head money can buy. Featuring 220cc intake runners, this package is recommended for race applications and …

Add the cam. Skip the guesswork. Make more power. The Air Flow SBC Top End Kits are perfect for customers looking for the ultimate bolt-on power upgrade for their small block chevy …

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 …

Air Flow Research has been defining technological leadership in cylinder head manufacturing and flow dynamics. This complete commitment to performance has enabled Air Flow Research's …

Recommended for radical "Pro Street" or racing applications with displacements up to 605 cubic inches, operating at or below 7400 RPM. AFR's 357cc cylinder heads features fully CNC …

Cylinder Head SpecialistsAFR`s 195cc "Street" heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. …