Air Flow Research (AFR) Cylinder Heads & More

Valve Spring Shim, 0.015 in. Thick, 1.450 in. Outside Diameter, 0.670 in. Inside Diameter, Set of 16

Part Number: AFR-6325-16

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Estimated Ship Date: Today

Cylinder Heads, Competition Porting, Aluminum, Assembled, 121cc Chamber, 335cc Intake, Chevy, Big Block, Pair

Part Number: AFR-2001

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Nov 6, 2025 if ordered today

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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: Today

Valve Spring Retainer, Titanium, 7 degree Lock, 1.245 in., Dual Spring, Each

Part Number: AFR-8515-1

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Estimated Ship Date: Nov 6, 2025 if ordered today

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Cylinder Heads, 245cc NPP SBC Eliminator Racing, Aluminum, Assembled, 80cc Chamber, 245cc Intake, Angle Plug, Chevrolet, Small Block, Pair

Part Number: AFR-1138-TI

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Estimated Ship Date: Nov 10, 2025 if ordered today

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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: Today

Cylinder Heads, CNC Blended Bowls, Aluminum, Assembled, 117cc Chamber, 345cc Intake, Chevy, Big Block, Pair

Part Number: AFR-2110

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 14, 2025 if ordered today

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Heads, Aluminum, Assembled, 315cc Intake Runner, 75cc Chamber, Ford, Big Block, Pair

Part Number: AFR-3834

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 23, 2025 if ordered today

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Valve Spring Retainer, Chromoly, 10 degree Lock, 1.500 in., Dual Spring, Set of 16

Part Number: AFR-8518-16

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Estimated Ship Date: Nov 6, 2025 if ordered today

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Valve Springs, Street Hydraulic/Solid Roller Spring 1.550 O.D. PAC #1940, Each

Part Number: AFR-8002-1

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Estimated Ship Date: Today

Heads, Aluminum, Assembled, 295cc Intake Runner, 75cc Chamber, Ford, Big Block, Pair

Part Number: AFR-3816

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Estimated Ship Date: Oct 23, 2025 if ordered today

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Valve Springs, Solid Roller Spring 1.550 O.D. Custom PAC Racing Spring, Each

Part Number: AFR-8000-1

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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, Each

Part Number: AFR-7207-1

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Heads, Aluminum, Assembled, 295cc Intake Runner, 85cc Chamber, Ford, Big Block, Pair

Part Number: AFR-3819

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Heads, Aluminum, Bare, 315cc Intake Runner, 75cc Chamber, Ford, Big Block, Pair

Part Number: AFR-3833

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Estimated Ship Date: Oct 23, 2025 if ordered today

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

Part Number: AFR-1112

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Estimated Ship Date: Oct 23, 2025 if ordered today

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Valves, BBC 24° Stainless Steel 2.190 x 5.460 O.A.L 11/32 Stem Std Race Intake Valve, Set

Part Number: AFR-7601-8

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Estimated Ship Date: Nov 6, 2025 if ordered today

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Cylinder Heads, Aluminum, Assembled, 75cc Combustion Chamber, 210cc Intake, Chevy, Small Block, Pair

Part Number: AFR-1100

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Oct 13, 2025 if ordered today

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Cylinder Heads, 260cc LS3 Mongoose, Aluminum, Bare, 69cc Chamber, 245cc Intake, Round Exhaust Port, Pedestal Mounting Style, Chevrolet, 6.2L, Pair

Part Number: AFR-1841

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Estimated Ship Date: Oct 13, 2025 if ordered today

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Cylinder Heads, Oval Port Magnum, Aluminum, Assembled, 109cc Chamber, 265cc Intake, Chevy, Pair

Part Number: AFR-3620

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Estimated Ship Date: Oct 23, 2025 if ordered today

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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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Valve, Replacement, Intake, 2.080 in. Head Diameter, 0.313 in. Stem Diameter, 4.900 in. Overall Length, Stainless Steel, Chevy, LS1, Each

Part Number: AFR-7208-1

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Estimated Ship Date: Today

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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Estimated Ship Date: Today

Cylinder Heads, Eliminator Racing, Aluminum, Assembled, 75cc Chamber, 210cc Intake, Chevy, Small Block, Pair

Part Number: AFR-1055

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Estimated Ship Date: Oct 23, 2025 if ordered today

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Cylinder Heads, Eliminator Race Ready, Aluminum, Assembled, 75cc Chamber, 227cc Intake, Chevy, Small Block

Part Number: AFR-1075

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Estimated Ship Date: Oct 23, 2025 if ordered today

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