Air Flow Research (AFR) Cylinder Heads & More

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

Part Number: AFR-6209

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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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

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Valve Stem Oil Seal, Positive Stop, Viton® Rubber, 8 mm Stem Diameter, 0.490 in, Guide Diameter, 0.620 in. O.D.,

Part Number: AFR-6615

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

Valve Locks, 10 degree, 1-groove, Alloy Steel, Machined, 0.343 in. Stem Diameter, Set of 16

Part Number: AFR-9005-16

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

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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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Valve Springs, Solid Flat Tappet/Street Hydraulic Roller Spring, 1.550 O.D., PAC #1924, Set of 16

Part Number: AFR-8016-16

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Estimated Ship Date: May 18, 2026 if ordered today

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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 )

Estimated Ship Date: May 18, 2026 if ordered today

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Valve Spring Locators, Valve Spring Seats, Inside Locating Shoulder Type, Chromoly, 0.570 in. I.D., 1.550 in. O.D., Set of 16

Part Number: AFR-8048-16

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Valves, Replacement Stainless Steel Valves, Intake, 2.020 in. Valve Head Diameter, 8.00mm Stem, 5.000 in. Length, Chevrolet, Ford, Set of 8

Part Number: AFR-7257-8

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Estimated Ship Date: Apr 6, 2026 if ordered today

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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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Estimated Ship Date: Monday 3/23/2026 if shipped by air

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

Part Number: AFR-7251-8

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Cylinder Head, LS, Aluminum, Cathedral, Bare, Small Bore, Enforcer, Each

Part Number: AFR-1502

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Exhaust Valve, Stainless Steel, 1.880 in. Diameter, 0.343 in. Stem, 5.450 in. Length, Chevy, Big Block, Each

Part Number: AFR-7633-1

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Valve Locks, 0.314 in. Stem Diameter, 7 Degree, 1-Groove Beadlock Style, Steel, Machined, Pair

Part Number: AFR-9007-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

Cylinder Heads, Street Porting, Aluminum, Assembled, 75 cc Chamber, 180cc Intake, Chevy, 302/327/350/400, Pair

Part Number: AFR-0911

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 19, 2026 if ordered today

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Intake Manifold, Bullitt, Aluminum, Natural, Single Plane, Square-Bore Flange, Ford, Big Block, Each

Part Number: AFR-4992

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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10 degree Machined Hardened Steel Valve Locks 8mm LS1 Bead Lock, Pair

Part Number: AFR-9009-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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

Part Number: AFR-6611-16

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

Lash Cap, Steel, 0.080 in. Thickness, 8.74mm Valve Stem Diameter, SBF, SBC, LSX, Each

Part Number: AFR-6608-1

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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

Part Number: AFR-6208

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Apr 6, 2026 if ordered today

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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, Each

Part Number: AFR-7214-1

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

Valve, Intake, Stainless Steel, 2.125 in. Diameter, 8mm Stem, 5.000 in. Length, Chevy, Set of 8

Part Number: AFR-7253-8

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Estimated Ship Date: May 4, 2026 if ordered today

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Camshaft Kits, AFR Stage 1 Camshaft and Lifter Kits, Hydraulic Roller, Retro-Fit, .533 int./.548 exh. Lift, 224 int/230 exh. Chevy, Sold as a Kit

Part Number: AFR-5802

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Valve Springs, Replacement, Standard Style, Dual, 1.550 in. O.D., 640 lbs./in. Spring Rate, for Use with Solid Roller Camshafts, Each

Part Number: AFR-8001-1

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air