Air Flow Research (AFR) Cylinder Heads & More

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

Part Number: AFR-8511-16

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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

Part Number: AFR-7228-8

Not Yet Reviewed

Estimated Ship Date: Tomorrow

• Free Shipping

Cylinder Head, Enforcer, Aluminum, Bare, 64cc Chamber, 210cc Intake, Cathedral Port, Small Bore, Chevrolet, LS, Each

Part Number: AFR-1507

Not Yet Reviewed

Estimated Ship Date: Tomorrow

• Free Shipping

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: Tomorrow

Cylinder Heads, Street Porting, Aluminum, Assembled, 65 cc Chamber, 180cc Intake, Chevy, 302/327/350/400, Pair

Part Number: AFR-0916

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

• Free Shipping

Cylinder Heads, Oval Port, Assembled, Aluminum, 112cc Combustion Chamber, 290cc Intake, Chevy, Big Block, Pair

Part Number: AFR-3640

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

• Free Shipping

Cylinder Heads, Street Porting, Aluminum, Assembled, 58cc Chamber, 165cc Intake, Pedestal, SBF, Pair

Part Number: AFR-1472

4.11 out of 5 stars ( 9 )

Estimated Ship Date: Tomorrow

• Free Shipping

Cylinder Heads, Aluminum, Assembled, 65cc Combustion Chamber, 220cc Intake, Chevy, Small Block, Pair

Part Number: AFR-1110

4.89 out of 5 stars ( 9 )

Estimated Ship Date: Tomorrow

• Free Shipping

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: Tomorrow

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

Part Number: AFR-1036

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

• Free Shipping

Intake Gaskets, Printoseal, Rectangle Port, .060 in. Thick, Chevy, Pair

Part Number: AFR-6860

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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

Part Number: AFR-7620-1

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Cylinder Heads, Street Porting, Aluminum, Assembled, 72cc Chamber, 230cc Intake, Chevy, Small Block, LS1, Pair

Part Number: AFR-1630

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

• Free Shipping

Valve, Replacement, Exhaust, Stainless Steel, 1.570 in. Diameter, 8mm Stem, 5.030 in. Length, Ford, Each

Part Number: AFR-7248-1

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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 )

Estimated Ship Date: Tomorrow

• Free Shipping

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: Tomorrow

• Free Shipping

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: Tomorrow

• Free Shipping

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: Tomorrow

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

Part Number: AFR-8017-1

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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

Part Number: AFR-6208

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

• Free Shipping

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: Tomorrow

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: Tomorrow

• Free Shipping

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

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Valve Springs, Replacement, Dual, 629 lbs./in. Spring Rate, Electroplate Polishing, Solid Roller, Set of 16

Part Number: AFR-8031-16

Not Yet Reviewed

Estimated Ship Date: Tomorrow

• Free Shipping