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Airflow Research (AFR)
For over thirty years Airflow Research has been defining technological leadership in cylinder head manufacturing and flow dynamics.

Airflow Research (AFR) Categories

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AFR Stainless Steel Valves
AFR Stainless Steel Replacement Valves - 1-Piece high quality replacements for your AFR cylinder heads. Requires AFR Bead Lock style valve locks. Conventional ''square'' style valve locks will not work with these AFR Valves.
AFR Valve Springs
AFR Hydraulic Roller Springs are Premium Grade Chrome Silicon valve springs.
BB Chevy Header Gaskets
PitStopUSA.com offers a variety of Big Block Chevrolet Header Gaskets from the biggest brands in drag racing including Cometic Big Block Chevrolet Header Gaskets, Earl's Big Block Chevrolet Header...More Details »
Carburetor Spacers
Carburetor Spacers from PitStopUSA.com are used for everything from air cleaner clearance to fine tuning the torque curve of your engine. We have a huge selection of aluminum, phenolic and wood...More Details »
Cylinder Heads
Getting a great set of cylinder heads is one of the best ways to create maximum horsepower from your racing engine. Creating the perfect fuel, air, and exhaust flow depends on the size and shape of...More Details »
Exhaust Header and Manifold Gaskets
Pit Stop USA is The Online Motorsports Superstore! We feature Header Gaskets at low everyday prices.
Guide Plates
Pit Stop USA is The Online Motorsports Superstore! We feature Pushrod Guide Plates at low everyday prices.
Intake Manifold Gaskets - BB Chevy
PitStopUSA.com offers a variety of Big Block Chevrolet Intake Manifold Gaskets from the biggest brands in drag racing including AFR Big Block Chevrolet Intake Manifold Gaskets, Brodix Big Block...More Details »
Intake Manifold Gaskets - BB Ford / FE
PitStopUSA.com offers a variety of Big Block Ford and Ford FE Intake Manifold Gaskets from the biggest brands in drag racing including Edelbrock Big Block Ford and Ford FE Intake Manifold Gaskets,...More Details »
Intake Manifold Gaskets - SB Ford
Pit Stop USA is The Online Motorsports Superstore! We feature Intake Manifold Gaskets for Small Block Ford at low everyday prices.
Intake Manifolds - Big Block Chevrolet
PitStopUSA.com offers a variety of Big Block Chevrolet Intake Manifolds from the biggest brands in drag racing including Brodix Big Block Chevrolet Intake Manifolds, Dart Big Block Chevrolet Intake...More Details »
Intake Manifolds - Big Block Ford / Ford FE
PitStopUSA.com offers a variety of Big Block Ford and Ford FE Intake Manifolds from the biggest brands in drag racing including Edelbrock Big Block Ford and Ford FE Intake Manifolds, Weiand Big...More Details »
Intake Manifolds - Small Block Chevrolet
Pit Stop USA is The Online Motorsports Superstore! We feature Intake Manifolds for Small Block Chevy at low everyday prices.
Rocker Arm Fastener Kits - NEW
Check out the Recently Listed Rocker Arm Fastener Kits.
Rocker Arm Stud Girdles
Pit Stop USA is The Online Motorsports Superstore! We feature Stud Girdles at low everyday prices.
Rocker Arms
Pit Stop USA is The Online Motorsports Superstore! We feature Rocker Arms at low everyday prices.
Valve Cover Gaskets - BB Chevy
PitStopUSA.com offers a variety of Big Block Chevrolet Valve Cover Gaskets from the biggest brands in drag racing including Brodix Big Block Chevrolet Valve Cover Gaskets, Dart Big Block Chevrolet...More Details »
Valve Covers
Choosing the right valve covers from PitStopUSA.com huge selection not only provides a reliable seal but make your engine look great when you lift the hood of your race car. Whether you want to...More Details »
Valve Guides
PitStopUSA.com offers a variety of Valve Guides from the biggest brands in drag racing including AFR Valve Guides, Brodix Valve Guides, Dart Valve Guides, Edelbrock Valve Guides and more at low everyday prices.
Valve Locks
Valve locks and retainers hold the retainer in place by using the force of the valve spring to hold the retainer and lock in place, not by the tang locking into the groove on the valve stem. In...More Details »
Valve Seats
PitStopUSA.com offers a variety of Valve Seats from the biggest brands in drag racing including Brodix Valve Seats, Dart Valve Seats and more at low everyday prices.
Valve Spring Retainers
Valve locks and retainers hold the retainer in place by using the force of the valve spring to hold the retainer and lock in place, not by the tang locking into the groove on the valve stem. In...More Details »
Valve Stem Seals
Pit Stop USA is The Online Motorsports Superstore! We feature Valve Stem Seals at low everyday prices.
Items 1-23 of 23

Airflow Research (AFR) Products

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Items 1-25 of 133
Description: Valve Spring, Dual Spring, 220 lb/in Spring Rate, 1.550 in OD, Each
Item #: AFR8000
Condition: New
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Ships from Michigan.
Price: $15.99
Sale: $15.00
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Description: Valve Spring Retainer, 10 Degree, 1.125 in / 0.705 in OD Steps, 1.500 in Dual Spring, Chromoly, Each
Item #: AFR8511
Condition: New
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Price: $3.99
Sale: $3.00
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Description: Valve Lock, 10 Degree, 8 mm Valve Stem, Standard Height, Steel, Natural, Set of 32
Item #: AFR9009
Condition: New
Limited Supply: Only 3 Left!
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Ships from Michigan.
Price: $40.99
Sale: $39.86
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Save: $1.13
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Description: Valve Lock, 10 Degree, 11/32 in Valve Stem, Standard Height, Steel, Natural, Set of 32
Item #: AFR9005
Condition: New
Limited Supply: Only 1 Left!
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Ships from Michigan.
Price: $40.99
Sale: $39.87
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Description: Valve Guide, 11/32 in Valve, 3.000 in Long, 0.505 in OD, Bronze, Each
Item #: AFR9056
Condition: New
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Price: $11.99
Sale: $11.00
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Description: Cylinder Head, LS3 Mongoose, Assembled, 2.165 / 1.600 in Valves, 260 cc Intake, 69 cc Chamber, 1.270 in Springs, Aluminum, GM LS-Series, Pair
Item #: AFR1845
Condition: New
Limited Supply: Only 0 Left!
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Price: $2,720.00
Sale: $2,656.86
Save: 2%
Save: $63.14

Description: Cylinder Head, Renegade Street, Assembled, 1.900 / 1.600 in Valves, 165 cc Intake, 58 cc Chamber, 1.290 in Springs, Aluminum, Small Block Ford, Pair
Item #: AFR1399
Condition: New
Limited Supply: Only 3 Left!
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Price: $1,768.00
Sale: $1,733.86
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Description: Cylinder Head, Renegade Street, Assembled, 2.020 / 1.600 in Valves, 185 cc Intake, 72 cc Chamber, 1.290 in Springs, Aluminum, Small Block Ford, Pair
Item #: AFR1387
Condition: New
Limited Supply: Only 1 Left!
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Price: $1,768.00
Sale: $1,733.86
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Description: Cylinder Head, Renegade Street, Assembled, 2.020 / 1.600 in Valves, 185 cc Intake, 58 cc Chamber, 1.290 in Springs, Aluminum, Small Block Ford, Pair
Item #: AFR1422
Condition: New
Limited Supply: Only 1 Left!
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Price: $1,768.00
Sale: $1,733.86
Save: 2%
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Description: Cylinder Head, Eliminator Street, Assembled, 2.050 / 1.600 in Valves, 195 cc Intake, 65 cc Chamber, 1.290 in Springs, Aluminum, Small Block Chevy, Pair
Item #: AFR1040
Condition: New
Limited Supply: Only 3 Left!
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Price: $1,770.00
Sale: $1,734.86
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Description: Cylinder Head, Eliminator Street, Assembled, 2.050 / 1.600 in Valves, 195 cc Intake, 75 cc Chamber, 1.290 in Springs, Aluminum, Small Block Chevy, Pair
Item #: AFR1038
Condition: New
Limited Supply: Only 1 Left!
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Price: $1,770.00
Sale: $1,735.86
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Description: Cylinder Head, Eliminator Street, Assembled, 2.050 / 1.600 in Valves, 195 cc Intake, 75 cc Chamber, 1.290 in Springs, Aluminum, Small Block Chevy, Pair
Item #: AFR1036
Condition: New
Limited Supply: Only 2 Left!
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Price: $1,770.00
Sale: $1,735.86
Save: 2%
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Description: Cylinder Head, Eliminator Street, Assembled, 2.050 / 1.600 in Valves, 195 cc Intake, 65 cc Chamber, 1.290 in Springs, Aluminum, GM LT-Series, Pair
Item #: AFR1031
Condition: New
Limited Supply: Only 1 Left!
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Price: $1,898.00
Sale: $1,858.86
Save: 2%
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Description: Cylinder Head, Renegade Race, Assembled, 2.080 / 1.600 in Valves, 205 cc Intake, 58 cc Chamber, 1.550 in Springs, Aluminum, Small Block Ford, Pair
Item #: AFR1450
Condition: New
Limited Supply: Only 3 Left!
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Price: $2,225.00
Sale: $2,175.86
Save: 2%
Save: $49.14


Description: Cylinder Head, Renegade Race, Assembled, 2.080 / 1.600 in Valves, 205 cc Intake, 72 cc Chamber, 1.550 in Springs, Aluminum, Small Block Ford, Pair
Item #: AFR1458
Condition: New
Limited Supply: Only 1 Left!
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Price: $2,225.00
Sale: $2,175.86
Save: 2%
Save: $49.14


Description: Cylinder Head, Eliminator Race, Assembled, 2.080 / 1.600 in Valves, 210 cc Intake, 75 cc Chamber, 1.550 in Springs, Aluminum, Small Block Chevy, Pair
Item #: AFR1050
Condition: New
Limited Supply: Only 1 Left!
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Price: $1,881.00
Sale: $1,842.86
Save: 2%
Save: $38.14


Description: Cylinder Head, Eliminator Comp, Assembled, 2.080 / 1.600 in Valves, 210 cc Intake, 65 cc Chamber, 1.550 in Springs, Aluminum, Small Block Chevy, Pair
Item #: AFR1103
Condition: New
Limited Supply: Only 0 Left!
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Price: $2,274.00
Sale: $2,223.86
Save: 2%
Save: $50.14

Description: Cylinder Head, Eliminator Race, Assembled, 2.080 / 1.600 in Valves, 210 cc Intake, 65 cc Chamber, 1.550 in Springs, Aluminum, Small Block Chevy, Pair
Item #: AFR1054
Condition: New
Limited Supply: Only 3 Left!
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Price: $1,881.00
Sale: $1,842.86
Save: 2%
Save: $38.14


Description: Cylinder Head, Eliminator Race, Assembled, 2.100 / 1.600 in Valves, 220 cc Intake, 65 cc Chamber, 1.550 in Springs, Aluminum, Small Block Chevy, Pair
Item #: AFR1110
Condition: New
Limited Supply: Only 0 Left!
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Price: $2,336.00
Sale: $2,283.86
Save: 2%
Save: $52.14

Description: Cylinder Head, Eliminator Race, Assembled, 2.100 / 1.600 in Valves, 220 cc Intake, 75 cc Chamber, 1.550 in Springs, Aluminum, Small Block Chevy, Pair
Item #: AFR1112
Condition: New
Limited Supply: Only 0 Left!
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Price: $2,336.00
Sale: $2,283.86
Save: 2%
Save: $52.14

Description: Cylinder Head, Renegade Race, Assembled, 2.100 / 1.570 in Valves, 220 cc Intake, 58 cc Chamber, 1.550 in Springs, Aluminum, Small Block Ford, Pair
Item #: AFR1451
Condition: New
Limited Supply: Only 2 Left!
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Price: $2,280.00
Sale: $2,229.86
Save: 2%
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Description: Cylinder Head, Renegade Race, Assembled, 2.100 / 1.570 in Valves, 220 cc Intake, 72 cc Chamber, 1.550 in Springs, Aluminum, Small Block Ford, Pair
Item #: AFR1456
Condition: New
Limited Supply: Only 3 Left!
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Price: $2,280.00
Sale: $2,229.86
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Description: Cylinder Head, Eliminator Comp, Assembled, 2.100 / 1.600 in Valves, 227 cc Intake, 65 cc Chamber, 1.550 in Springs, Aluminum, Small Block Chevy, Pair
Item #: AFR1121
Condition: New
Limited Supply: Only 0 Left!
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Price: $2,336.00
Sale: $2,283.86
Save: 2%
Save: $52.14

Description: Cylinder Head, Eliminator Spread, Assembled, 2.100 / 1.600 in Valves, 227 cc Intake, 65 cc Chamber, 1.55 in Springs, Aluminum, Small Block Chevy, Pair
Item #: AFR1124
Condition: New
Limited Supply: Only 1 Left!
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Price: $2,336.00
Sale: $2,283.86
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Description: Cylinder Head, Eliminator Comp, Assembled, 2.100 / 1.600 in Valves, 227 cc Intake, 75 cc Chamber, 1.550 in Springs, Aluminum, Small Block Chevy, Pair
Item #: AFR1120
Condition: New
Limited Supply: Only 1 Left!
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FREE SHIPPING! Oversize Fees Waived On This Item! Ships from Michigan.
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Price: $2,336.00
Sale: $2,283.86
Save: 2%
Save: $52.14

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Items 1-25 of 133

More About Airflow Research (AFR)

Pit Stop USA is The Online Motorsports Superstore! For over thirty years Airflow Research has been defining technological leadership in cylinder head manufacturing and flow dynamics. This complete commitment to performance has enabled Airflow Research's cylinder heads to find themselves on the fastest race cars and the most powerful street machines in the country. As every engine builder will attest to, the secret to increasing horsepower and performance lies in the cylinder head, and Airflow Research's cylinder heads outflow and out horsepower everything in their league.