Air Flow Research (AFR) Cylinder Heads & More

Valve, Intake, Dished, 2.250 in. Head Diameter, 0.250 in. Over Installed Length, Chevy, Big Block, Each

Part Number: AFR-7620-1

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Cylinder Heads, Aluminum, 245cc Intake Runner Volume, 80cc Exhaust Runner Volume, SBC, Pair

Part Number: AFR-1137-TI

5.0 out of 5 stars ( 1 )

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Cylinder Head Bolt, Bushing, Steel, Black Zinc, 1/2 in. O.D. x 7/16 in. I.D., Ford, Small Block, Set of 20

Part Number: AFR-6324

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Valves, Inconel, Exhaust, 1.880 in. Diameter, 0.344 in. Stem, 5.450 in. Length, Chevy, Big Block, Each

Part Number: AFR-7633-8

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

Part Number: AFR-1422

4.71 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Cylinder Heads, Street Porting, Aluminum, Assembled, 75cc Chamber, 195cc Intake, Chevy, Small Block, Pair

Part Number: AFR-1038

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Cylinder Heads, Race Porting, Aluminum, Assembled, 72cc Chamber, 205cc Intake, Ford, Small Block, Pair

Part Number: AFR-1458

5.0 out of 5 stars ( 3 )

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Cylinder Heads, Street Porting, Aluminum, Assembled, 58cc Chamber, 165cc Intake, Stud, Ford, Small Block, Pair

Part Number: AFR-1402

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Today

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

Part Number: AFR-6208

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Valve Guide, Bronze, 0.505 in. o.d., Chevy, Ford, Each

Part Number: AFR-9056

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

Valve, Intake, Stainless Steel, 2.020 in. Diameter, 8mm Stem, 4.900 in. Length, Chevy, Ford, Each

Part Number: AFR-7251-1

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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

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Cylinder Heads, Magnum, Aluminum, Assembled, 113cc Chamber, 300cc Intake, Chevy, Pair

Part Number: AFR-3670

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Valve Spring Retainer, 10 degree, 1.500 in. O.D., Steel, Set of 16

Part Number: AFR-8511-16

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Valve, Replacement, Exhaust, Stainless Steel, 1.600 in. Diameter, Chevy, AFR LSX, Set of 8

Part Number: AFR-7228-8

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Cylinder Heads, Enforcer, Aluminum, Bare, 64cc Chamber, 195cc Intake, Straight Plug, Chevrolet, Small Block, Each

Part Number: AFR-1002

5.0 out of 5 stars ( 1 )

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Valve, Intake, Stainless Steel, 2.100 in. Diameter, 8mm Stem, 5.000 in. Length, Beadlock, Chevy, Ford, Set of 8

Part Number: AFR-7256-8

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Valves, Stainless Steel, Intake, 2.165 in. Head Diameter, 0.315 in. Stem Diameter, 5.195 in. Length, Beadlock 1-Groove, Chevy, 6.0L, LS3, Set of 8

Part Number: AFR-7214-8

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Estimated Ship Date: Nov 3, 2025 if ordered today

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Valve Stem Seal, Positive Stop, Viton®, 0.344 in. Stem Diameter, 0.530 in. Guide Diameter, Set of 16

Part Number: AFR-6611-16

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Valve, Exhaust, Stainless Steel, 1.600 in. Diameter, 8mm Stem, 4.950 in. Length, Chevy, Ford, Set of 8

Part Number: AFR-7250-8

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Valve Springs, Pacaloy Hydraulic Roller Spring 1.290 O.D., Premium Grade Chrome Silicon, Each

Part Number: AFR-8017-1

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Guide Plates, Flat, Steel, Hardened, 5/16 in. Pushrod Slot, Ford, Chevy, Small Block, Small Block Chevy, Each

Part Number: AFR-6103-1

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Valve, Replacement, Exhaust, Stainless Steel, 1.880 in. Head Diameter, 5.450 in. Length, Chevy, Big Block, Each

Part Number: AFR-7630-1

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Valve, Replacement, Intake, 2.020 in. Head Diameter, 0.313 in. Stem Diameter, 4.900 in. Overall Length, Stainless Steel, Chevy, LS1, Set of 8

Part Number: AFR-7207-8

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Retainer, 10 degree, Chromoly Steel, for Dual Valve Spring (1.450 in. Outer Spring o.d.), Set of 16

Part Number: AFR-8510-16

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