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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/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 Chevy
Pit Stop USA is The Online Motorsports Superstore! We feature Intake Manifold Gaskets for Small Block Chevy 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 Adjusters
Pit Stop USA is The Online Motorsports Superstore! We feature Rocker Arm Adjuster Nuts & Polylocks at low everyday prices.
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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 1-24 of 24

Airflow Research (AFR) Products

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Items 76-100 of 127
Description: Cylinder Head, Eliminator Race, Assembled, 2.125 / 1.600 in Valves, 245 cc Intake, 80 cc Chamber, 1.550 in Springs, Angle Plug, Aluminum, Small Block Chevy, Pair
Item #: AFR1140-TI
Condition: New
Limited Supply: Only 1 Left!
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Price: $3,687.99
Sale: $3,650.37
Save: 1%
Save: $37.62

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Description: Intake Manifold, Eliminator Race, Square Bore, Single Plane, Aluminum, Natural, Small Block Chevy, Each
Item #: AFR4811
Condition: New
Limited Supply: Only 1 Left!
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Price: $436.99
Sale: $432.39
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Save: $4.60

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Description: Valve Cover, Tall, Breather Holes, AFR Logo, Aluminum, Polished, Small Block Chevy, Pair
Item #: AFR6704
Condition: New
Limited Supply: Only 2 Left!
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Price: $251.99
Sale: $248.81
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Save: $3.18
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Description: Valve Cover, Tall, Breather Holes, AFR Logo, Aluminum, Black Powder Coat, Small Block Chevy, Pair
Item #: AFR6705
Condition: New
Limited Supply: Only 4 Left!
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Price: $251.99
Sale: $248.81
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Description: Valve Cover, Tall, Breather Holes, AFR Logo, Aluminum, Polished, Small Block Ford, Pair
Item #: AFR6714
Condition: New
Limited Supply: Only 1 Left!
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Price: $254.99
Sale: $252.35
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Save: $2.64

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Description: Cylinder Head, SBF Competition, Assembled, 2.050 / 1.600 in Valves, 70 cc Intake, 58 cc Chamber, 1.270 in Springs, Aluminum, Small Block Ford, Pair
Item #: AFR1381-716
Condition: New
Limited Supply: Only 1 Left!
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Price: $2,686.99
Sale: $2,659.29
Save: 1%
Save: $27.70

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Description: Valve Spring Retainer, 10 Degree, 1.120 in / 0.705 om OD Steps, 1.550 in Dual Spring, Steel, Each
Item #: AFR8511-1
Condition: New
Limited Supply: Only 7 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $3.99
Sale: $3.86
Save: 3%
Save: $0.13
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Description: Intake Valve, Street, 1.900 in Head, 8 mm Valve Stem, 4.900 in Long, Stainless, Small Block Ford, Each
Item #: AFR7249-1
Condition: New
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Orders over $149 ship free. Oversize items are excluded.
Price: $19.99
Sale: $19.32
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Save: $0.67
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Description: Intake Valve, Street, 2.020 in Head, 8 mm Stem, 4.900 in Long, Stainless, Small Block Chevy / Ford, Each
Item #: AFR7251-1
Condition: New
Limited Supply: Only 7 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $19.99
Sale: $19.32
Save: 3%
Save: $0.67
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Description: Intake Valve, Street, 2.050 in Head, 8 mm Stem, 4.900 in Long, Stainless, Small Block Chevy / Ford, Each
Item #: AFR7252-1
Condition: New
Limited Supply: Only 0 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $19.99
Sale: $19.32
Save: 3%
Save: $0.67
Description: Intake Valve, Street Valves, 2.020 in Head, 11/32 in Valve Stem, Stock Length, Stainless, Small Block Chevy, Each
Item #: AFR7204
Condition: New
Limited Supply: Only 8 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $20.99
Sale: $20.10
Save: 4%
Save: $0.89
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Description: Rocker Arm Stud Girdle, Standard, Aluminum, Gold Anodized, AFR Eliminator Heads, Small Block Chevy, Pair
Item #: AFR6200
Condition: New
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Price: $187.99
Sale: $185.81
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Save: $2.18
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Description: Rocker Arm Stud Girdle, Offset, Aluminum, Gold Anodized, AFR Eliminator Heads, Small Block Chevy, Pair
Item #: AFR6208
Condition: New
Limited Supply: Only 5 Left!
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Price: $206.99
Sale: $204.91
Save: 1%
Save: $2.08
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Description: Rocker Arm Nut, 3/8-24 in Thread, Steel, Black Oxide, Stud Girdle, Chevy V8, Each
Item #: AFR6216-1
Condition: New
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Orders over $149 ship free. Oversize items are excluded.
Price: $10.99
Sale: $10.68
Save: 3%
Save: $0.31
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Description: Rocker Arm Nut, 7/16-20 in Thread, 2.100 in Length, Steel, Black Oxide, Stud Girdle, Chevy / Ford V8, Each
Item #: AFR6214-1
Condition: New
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Orders over $149 ship free. Oversize items are excluded.
Price: $10.99
Sale: $10.68
Save: 3%
Save: $0.31
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Description: Valve Spring Retainer, 10 Degree, 1.500 in OD, Dual Spring, Titanium, Each
Item #: AFR8505-1
Condition: New
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Orders over $149 ship free. Oversize items are excluded.
Price: $21.99
Sale: $21.64
Save: 2%
Save: $0.35
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Description: Valve Cover Gasket, 0.313 in Thick, Steel Core Fiber, AFR 18 Degree Heads, Big Block Chevy, Pair
Item #: AFR6882
Condition: New
Limited Supply: Only 1 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $46.99
Sale: $46.04
Save: 2%
Save: $0.95
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Description: Valve Guide, 8 mm Valve, 2.100 in Long, 0.502 in OD, Bronze, Each
Item #: AFR9051-1
Condition: New
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Price: $12.99
Sale: $12.37
Save: 5%
Save: $0.62
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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 #: AFR1402
Condition: New
Limited Supply: Only 0 Left!
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Price: $2,085.99
Sale: $2,064.27
Save: 1%
Save: $21.72

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 #: AFR1388
Condition: New
Limited Supply: Only 6 Left!
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Price: $2,085.99
Sale: $2,064.27
Save: 1%
Save: $21.72


Description: Cylinder Head, Eliminator Street, Assembled, 2.050 / 1.600 in Valves, 195 cc Intake, 65 cc Chamber, 1.290 in Springs, Straight Plug, Aluminum, Small Block Chevy, Pair
Item #: AFR1034
Condition: New
Limited Supply: Only 0 Left!
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Price: $2,087.99
Sale: $2,066.54
Save: 1%
Save: $21.45

Description: Cylinder Head, Eliminator Race, Assembled, 2.100 / 1.600 in Valves, 227 cc Intake, 65 cc Chamber, 1.550 in Springs, Angle Plug, Aluminum, Small Block Chevy, Pair
Item #: AFR1068
Condition: New
Limited Supply: Only 2 Left!
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Price: $2,323.99
Sale: $2,300.33
Save: 1%
Save: $23.66


Description: Cylinder 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
Item #: AFR2000
Condition: New
Limited Supply: Only 0 Left!
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Price: $4,528.99
Sale: $4,483.58
Save: 1%
Save: $45.41

Description: Exhaust Manifold / Header Gasket, 2.130 in Round Port, Steel Core Laminate, Big Block Chevy, Pair
Item #: AFR6858
Condition: New
Limited Supply: Only 9 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $30.99
Sale: $30.52
Save: 2%
Save: $0.47
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Description: Rocker Arm Stud Girdle, Aluminum, Blue Anodized, AFR Magnum V2 Heads, Big Block Chevy, Pair
Item #: AFR6202
Condition: New
Limited Supply: Only 2 Left!
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Price: $291.99
Sale: $288.40
Save: 1%
Save: $3.59

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Items 76-100 of 127

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.