Airflow Research (AFR) Cylinder Heads

Valve Guides, Bronze, 0.315 in. I.D., 0.502 in. O.D., 2.100 in. Length, Use with LSX, Small Block Chevy and Small Block Ford Engines, Each

Part Number: AFR-9051-1

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LS Cathedral Port/SBC/SBF 8mm Bronze Guide, .502" O.D., Set of 16

Part Number: AFR-9051-16

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Valve Stem Oil Seal, Positive Stop, Viton® Rubber, 8.74mm Stem Diameter, 0.513 in, Guide Diameter, 0.675 in. O.D., Each

Part Number: AFR-6614

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Cylinder Heads, Aluminum, Assembled, 75cc Combustion Chamber, 220cc Intake, Chevy, Small Block, Pair

Part Number: AFR-1066

5.0 out of 5 stars ( 3 )

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Cylinder Heads, CNC Blended Bowls, Aluminum, Assembled, 117cc Chamber, 325cc Intake, Chevy, Big Block, Pair

Part Number: AFR-2101

5.0 out of 5 stars ( 1 )

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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 )

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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 )

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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 )

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Cylinder Heads, CNC Chambers, Aluminum, Assembled, 121cc Chamber, 345cc Intake, Chevy, Big Block, Pair

Part Number: AFR-2110-1

3.67 out of 5 stars ( 3 )

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Cylinder Heads, 195cc SBF Renegade Competition, Aluminum, Assembled, 72cc Chamber, 195cc Intake, Square Exhaust Port, Ford, Small Block Windsor, Pair

Part Number: AFR-1383-716

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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 )

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Valve Seat Insert, Intake, Ductile Iron, 1.780 in. i.d., 2.200 in. o.d., 0.375 in. Thick, Chevy, Small Block

Part Number: AFR-9060

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Valve Seat Insert, Exhaust, Ductile Iron, 1.600 in. i.d., 1.696 in. o.d., 0.375 in. Thick, Chevy, Small Block

Part Number: AFR-9070

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Valve Seat Inserts, Exhaust, Ductile Iron, 1.350 in. I.D., 1.650 in. O.D., Chevrolet, Ford, Each

Part Number: AFR-9069

5.0 out of 5 stars ( 1 )

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Cylinder Head, Enforcer, Aluminum, Bare, 64cc Chamber, 195cc Intake, Angle Plug, Chevrolet, Small Block, Each

Part Number: AFR-1007

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Cylinder Heads, Race, Aluminum, Assembled, 117cc Chamber, 305cc Intake Runner, Chevy, Big Block, Pair

Part Number: AFR-2100

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Valve Seat Inserts, Intake, Ductile Iron, 1.720 in. I.D., 2.132 in. O.D., Chevrolet, Ford, Each

Part Number: AFR-9059

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Cylinder Head Fastener, Stud, ARP2000, Black Oxide, 7/16 in. to 3/8 in., Stepped, 4 1/2 in. Long, Black Finish, Chevy, Small Block, Each

Part Number: AFR-6404

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Valve Seat Insert, Intake, Ductile Iron, 2.000 in. i.d., 1.570 in. o.d., 0.375 in. Thick, Chevy, Small Block

Part Number: AFR-9064

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Valve Guide, 11/32 in., Bronze, Exhaust, Chevy, Big Block, Each

Part Number: AFR-9041-1

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Valve Guide, 11/32 in., Bronze, Intake, Chevy, Big Block, Each

Part Number: AFR-9042-1

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Estimated Ship Date: Oct 21, 2025 if ordered today

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Valve Guide, 11/32 in., Bronze, Intake, Chevy, Big Block, Set of 8

Part Number: AFR-9042-8

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Estimated Ship Date: Oct 21, 2025 if ordered today

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Valve Guide, Intake, Bronze, Chevy, Big Block, Set of 8

Part Number: AFR-9045-8

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Estimated Ship Date: Oct 21, 2025 if ordered today

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Valve Guide, Exhaust, Bronze, Chevy, Big Block, Set of 8

Part Number: AFR-9046-8

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Estimated Ship Date: Oct 21, 2025 if ordered today

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Valve Guide, 11/32 in., Bronze, Exhaust, Chevy, Big Block, Set of 8

Part Number: AFR-9041-8

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Estimated Ship Date: Oct 21, 2025 if ordered today

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