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Vendor: Air FLow Research
1.245 7-Deg Valve Spring Retainer 1pk
Regular price $3.98Valve Spring Retainer - 7 Degree - 1.245 in Spring - Steel - Black Oxide - Each -
Vendor: Air FLow Research
1.270 Valve Spring Hydraulic Roller Cam
Regular price $25.35Valve Spring - Dual Spring - 450 lb/in Spring Rate - 1.080 in Coil Bind - 1.270 in OD - AFR Cylinder Heads Replacement - Each -
Vendor: Air FLow Research
1.500 Steel Retainer 10-Degree
Regular price $3.98Valve Spring Retainer - 10 Degree - 1.120 in / 0.705 om OD Steps - 1.550 in Dual Spring - Steel - Each -
Vendor: Air FLow Research
1.550 OD Valve Spring Solid Roller Cam
Regular price $19.68Valve Spring - Dual Spring - 540 lb/in Spring Rate - 1.155 in Coil Bind - 1.550 in OD - Each -
Vendor: Air FLow Research
10 Deg Valve Locks 11/32 Set
Regular price $52.26Valve Lock - 10 Degree - 11/32 in Valve Stem - Standard Height - Steel - Natural - Set of 16 -
Vendor: Air FLow Research
1in Phenolic 4150 Carb Spacer Open Clover
Regular price $44.26Carburetor Spacer - Lightweight - 1 in Thick - Open - Square Bore - Plastic - Black - Each -
Vendor: Air FLow Research
1in Phenolic 4150 Carb Spacer Tapered 4
Regular price $44.26Carburetor Spacer - Lightweight - 1 in Thick - 4 Hole - Square Bore - Plastic - Black - Each -
Vendor: Air FLow Research
4500 Single Plane Intake Manifold BBF Bullitt
Regular price $585.52Intake Manifold - Bullitt - Dominator Flange - Single Plane - Aluminum - Natural - Big Block Ford - Each -
Vendor: Air FLow Research
8mm 2.020 Intake Valve SBC/SBF Street
Regular price $19.90Intake Valve - Street - 2.020 in Head - 8 mm Stem - 4.900 in Long - Stainless - Small Block Chevy / Ford - Each -
Vendor: Air FLow Research
8mm Bronze Guide .502in OD
Regular price $12.74Valve Guide - 8 mm Valve - 2.100 in Long - 0.502 in OD - Bronze - Each -
Vendor: Air FLow Research
8mm Valve Stem Seals - Viton .530 Guide
Regular price $19.65Valve Stem Seal - Positive Stop - 8 mm Valve Stem - 0.530 in Guide - Viton - AFR LS1 Cylinder Heads - Set of 16 -
Vendor: Air FLow Research
Adjusting Nut 1pk 7/16 x 2.600 BBC Intake
Regular price $11.00Rocker Arm Nut - 7/16-20 in Thread - 2.600 in Length - Steel - Black Oxide - Stud Girdle - Big Block Chevy - Each -
Vendor: Air FLow Research
Adjusting Nut 8pk 7/16 x 2.600 BBC Intake
Regular price $74.17Rocker Arm Nut - 7/16-20 in Thread - 2.600 in Length - Steel - Black Oxide - Stud Girdle - Big Block Chevy - Set of 8 -
Vendor: Air FLow Research
Adjusting Nuts - 8pk 7/16 x 2.100
Regular price $74.17Rocker Arm Nut - 7/16-20 in Thread - 2.100 in Length - Steel - Black Oxide - Stud Girdle - Chevy / Ford V8 - Set of 8 -
Vendor: Air FLow Research
BBC 1.880 Exh Valve 11/32 5.450 OAL
Regular price $57.03Exhaust Valve - 1.880 in Head - 11/32 in Valve Stem - 5.450 in Long - Inconel - Big Block Chevy - Each -
Vendor: Air FLow Research
BBC 1.880 Exhaust Valve
Regular price $29.91Exhaust Valve - High Performance - 1.880 in Head - 11/32 in Valve Stem - 5.450 in Long - Stainless - Big Block Chevy - Each -
Vendor: Air FLow Research
BBC 1.880 Exhaust Valve
Regular price $28.30Exhaust Valve - 1.880 in Head - 11/32 in Valve Stem - 5.450 in Long - Stainless - Big Block Chevy - Each -
Vendor: Air FLow Research
BBC 2.300 Intake Valve
Regular price $28.30Intake Valve - High Performance - 2.300 in Head - 11/32 in Valve Stem - 5.500 in Long - Stainless - Big Block Chevy - Each -
Vendor: Air FLow Research
BBC 265cc CNC Alum Heads Magnum O/P
Regular price $2,975.64Cylinder Head - Magnum Street - Assembled - 2.190 / 1.880 in Valves - 265 cc Intake - 112 cc Chamber - 1.550 in Springs - Aluminum - Big Block Chevy - Pair -
Vendor: Air FLow Research
BBC 265cc CNC Alum Heads Magnum 109cc O/P
Regular price $2,717.93Cylinder Head - Magnum Street - Assembled - 2.190 / 1.880 in Valves - 265 cc Intake - 109 cc Chamber - 1.550 in Springs - Aluminum - Big Block Chevy - Pair -
Vendor: Air FLow Research
BBC 290cc CNC Alum Heads Magnum 112cc O/P
Regular price $3,780.69Cylinder Head - Magnum Street - Assembled - 2.250 / 1.880 in Valves - 290 cc Intake - 112 cc Chamber - 1.550 in Springs - Aluminum - Big Block Chevy - Pair -
Vendor: Air FLow Research
BBC 305cc Alm Cylinder Heads (Pair) Assembled
Regular price $3,512.14Cylinder Head - Magnum Comp - Assembled - 2.250 / 1.880 in Valves - 305 cc Intake - 117 cc Chamber - 1.625 in Springs - Aluminum - Big Block Chevy - Pair -
Vendor: Air FLow Research
BBC 305cc Alum Heads Magnum 121cc Assembled
Regular price $3,787.38Cylinder Head - Magnum Comp - Assembled - 2.250 / 1.880 in Valves - 305 cc Intake - 121 cc Chamber - 1.625 in Springs - Aluminum - Big Block Chevy - Pair -
Vendor: Air FLow Research
BBC 315cc Alum Heads Magnum 121cc Assembled
Regular price $4,618.09Cylinder Head - Magnum Comp - Assembled - 2.250 / 1.880 in Valves - 315 cc Intake - 121 cc Chamber - 1.625 in Springs - Aluminum - Big Block Chevy - Pair -
Vendor: Air FLow Research
BBC 325cc Alum Heads Magnum 117cc Assembled
Regular price $3,512.14Cylinder Head - Magnum Comp - Assembled - 2.300 / 1.880 in Valves - 325 cc Intake - 117 cc Chamber - 1.625 in Springs - Aluminum - Big Block Chevy - Pair -
Vendor: Air FLow Research
BBC 325cc Alum Heads Magnum 121cc Assembled
Regular price $3,787.38Cylinder Head - Magnum Comp - Assembled - 2.300 / 1.880 in Valves - 325 cc Intake - 121 cc Chamber - 1.625 in Springs - Aluminum - Big Block Chevy - Pair -
Vendor: Air FLow Research
BBC 335cc Alum Heads Magnum 121cc Assembled
Regular price $4,618.09Cylinder Head - Magnum Comp - Assembled - 2.300 / 1.880 in Valves - 335 cc Intake - 121 cc Chamber - 1.625 in Springs - Aluminum - Big Block Chevy - Pair -
Vendor: Air FLow Research
BBC 357cc CNC Alum Heads Magnum 121cc Assembled
Regular price $4,848.49Cylinder Head - Magnum Comp - Assembled - 2.300 / 1.880 in Valves - 357 cc Intake - 121 cc Chamber - 1.625 in Springs - Aluminum - Big Block Chevy - Pair -
Vendor: Air FLow Research
BBC 385cc CNC Alum Heads Magnum 121cc Assembled
Regular price $4,996.69Cylinder Head - Magnum Comp - Assembled - 2.350 / 1.880 in Valves - 385 cc Intake - 121 cc Chamber - 1.625 in Springs - Aluminum - Big Block Chevy - Pair -
Vendor: Air FLow Research
BBC Exhaust Gasket Set
Regular price $31.44Exhaust Header / Manifold Gasket - 2.130 in Round Port - Steel Core Laminate - Big Block Chevy - Pair
Established in 1970 in Valencia, CA, Air Flow Research is a family-owned and operated company building products for the Professional Racing and Street markets, including racers, street performance fans, and everyone in-between. The Air Flow Research product lineup contains cylinder heads, intake manifolds, valves, gaskets, carburetor adapters and spacers, lifters, fasteners, and more.