Air Flow Research (AFR) Cylinder Heads & More

When NASCAR drivers need race-winning horsepower and torque, they turn to one company: Air Flow Research. For over thirty years, Air Flow Research has been engineering...

When NASCAR drivers need race-winning horsepower and torque, they turn to one company: Air Flow Research. For over thirty years, Air Flow Research has been engineering cylinder heads that deliver unmatched flow and power output. Manufactured with advanced porting technology, AFR heads are flow-tested and subjected to a rigorous quality control process to ensure maximum performance in all applications. Whether you pilot a top fuel dragster or a street machine, Air Flow Research has a set of cylinder heads designed for you. Shop AFR cylinder heads at Summit Racing!

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Results 1 - 25 of 62

AFR Aluminum Roller Rocker Arms 6043

Rocker Arms, Stud Mount, Full Roller, Aluminum, 1.7 Ratio, Fits 7/16 in. Stud, Chevy, Big Block, Set of 16

Part Number: AFR-6043

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

AFR Rocker Arm Stud Girdle Replacement Nuts 6214-16

Rocker Arm Nuts, Stud Girdle Replacement Nuts, Full Roller, Polylock, 7/16-20 in., 2.00 in. Overall Length, Set of 16

Part Number: AFR-6214-16

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

AFR Stud Girdles 6200

Rocker Arm Stud Girdle, Eliminator, Aluminum, Gold Anodized, Chevy, Small Block, Pair

Part Number: AFR-6200

4.5 out of 5 stars ( 28 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

AFR Stud Girdles 6202

Stud Girdles, Clamp-on, Aluminum, Blue Anodized, Chevy, Big Block, AFR, Pair

Part Number: AFR-6202

4.64 out of 5 stars ( 11 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

AFR Aluminum Roller Rocker Arms 6036

Rocker Arms, Full Roller, 0.050 in. Intake Offset, 1.6 Ratio, Aluminum, Orange, Chevy, Small Block, Set of 16

Part Number: AFR-6036

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

AFR Stud Girdles 6207

Rocker Arm Stud Girdle, Aluminum, Ford, Small Block, Pair

Part Number: AFR-6207

4.83 out of 5 stars ( 12 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

AFR Rocker Arm Studs 6405-16

Rocker Arm Studs, 7/16-14 in. Base Thread, 7/16-20 in. Rocker Arm Nut Size, 0.850 in. Nut Length, 1.900 in. Overall Length, Set of 16

Part Number: AFR-6405-16

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

AFR Rocker Arm Stud Girdle Replacement Nuts 6216-16

Rocker Arm Nuts, Stud Girdle Replacement Nuts, Polylock, 3/8-24 in., Use with Small Block Chevy and Small Block Ford AFR Stud Girdles, Set of 16

Part Number: AFR-6216-16

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

AFR Rocker Arm Stud Girdle Replacement Nuts 6215-8

Rocker Arm Nuts, Stud Girdle Replacement Nuts, Full Roller, Polylock, 7/16-20 in., 2.60 in. Overall Length, Set of 8

Part Number: AFR-6215-8

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

AFR Rocker Arm Studs 6407-16

Rocker Arm Studs, 7/16-14 in. Base Thread, 7/16-20 in. Rocker Arm Nut Thread, 2.00 in. Stud Length, Chevy, Ford, Big Block, Set of 16

Part Number: AFR-6407-16

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

AFR Rocker Arm Studs 6409-16

Rocker Arm Studs, 3/8-24 in. Thread, 1.895 in. Effective Stud Length, Set of 16

Part Number: AFR-6409-16

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

AFR Rocker Arm Studs 6407-8

Rocker Arm Studs, 7/16-14 in. Base Thread, 7/16-20 in. Rocker Arm Nut Thread, 2.00 in. Stud Length, Chevy, Ford, Big Block, Set of 8

Part Number: AFR-6407-8

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

AFR Rocker Arm Stud Girdle Replacement Nuts 6214-8

Rocker Arm Nut, Stud Girdle Replacement Nut Type, Full Roller, 7/16-20 in. Thread, Chevy, Ford, Set of 8

Part Number: AFR-6214-8

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

AFR Rocker Arm Stud Girdle Replacement Nuts 6216-1

Rocker Arm Nuts, Stud Girdle Replacement Nuts, Polylock, 3/8-24 in., Use with Small Block Chevy and Small Block Ford AFR Stud Girdles, Each

Part Number: AFR-6216-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

AFR Rocker Arm Studs 6409-1

Rocker Arm Studs, 7/16-14 in. Base Thread, 7/16-20 in. Rocker Arm Nut Size, 1.00 in. Nut Length, 1.895 in. Overall Length, Each

Part Number: AFR-6409-1

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

AFR Rocker Arm Studs 6405-1

Rocker Arm Studs, 7/16-14 in. Base Thread, 7/16-20 in. Rocker Arm Nut Size, 0.850 in. Nut Length, 1.900 in. Overall Length, Each

Part Number: AFR-6405-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

AFR Rocker Arm Studs 6406-8

Rocker Arm Studs, 7/16-20 in. Thread, 2.010 in. Effective Stud Length, Chevy, Big Block, Exhaust, Set of 8

Part Number: AFR-6406-8

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

AFR Rocker Arm Stud Girdle Replacement Nuts 6214-1

Rocker Arm Nut, Stud Girdle Replacement Nut Type, Full Roller, 7/16-20 in. Thread, Chevy, Ford, Each

Part Number: AFR-6214-1

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

AFR Rocker Arm Stud Girdle Replacement Nuts 6215-1

Rocker Arm Nuts, Stud Girdle Replacement Nuts, Full Roller, Polylock, 7/16-20 in., 2.60 in. Overall Length, Each

Part Number: AFR-6215-1

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

AFR Stud Girdles 6209

Rocker Arm Stud Girdles, BB Ford Bullitt Cylinder Heads, Aluminum, Anodized Red, Pair

Part Number: AFR-6209

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

AFR Rocker Arm Studs 6407-1

Rocker Arm Studs, 7/16-14 in. Base Thread, 7/16-20 in. Rocker Arm Nut Thread, 2.00 in. Stud Length, Chevy, Ford, Big Block, Each

Part Number: AFR-6407-1

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Airflow Research (AFR) Rocker Arm Shafts 6040

LS3 Rocker Arm Rails

Part Number: AFR-6040

Not Yet Reviewed

Estimated Ship Date: May 6, 2026 if ordered today

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Estimated Ship Date: May 6, 2026 if ordered today

AFR 185cc SBF Enforcer Cylinder Heads 1351

Cylinder Head, 185cc Enforcer, Aluminum, Assembled, 64cc Combustion Chamber, 2.02 in. Intake Valve, 1.6 in. Exhaust Valve, Ford, Small Block, Each

Part Number: AFR-1351

4.47 out of 5 stars ( 17 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

AFR 335cc Enforcer BBC Cylinder Heads 3001

Cylinder Head, 335cc Enforcer, Assembled, 2.250 in. Intake Valve, 10 Degree Locks, 1.550 in. Dual Valve Springs, Aluminum, Chevy, Big Block, Each

Part Number: AFR-3001

3.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

AFR 185cc SBF Renegade 20 Degree Street Heads 1388

Cylinder Heads, Street Porting, Aluminum, Assembled, 58cc Chamber, 185cc Intake, Ford, Small Block, Pair

Part Number: AFR-1388

4.67 out of 5 stars ( 27 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

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