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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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Items 1-12 of 21
10° Titanium 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 »
10° 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 »
7° 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 »
AFR Aluminum Heads - BBC
Are you looking for big torque and big horsepower numbers? Our BB Chevy line of medium volume intake runners will provide you with exactly that. The phrase having your cake and eating it to would...More Details »
AFR Aluminum Heads - SBC
AFR is reviving its popular 220cc moniker due to overwhelming request from customers for a larger bolt on standard valve location head. Unlike the previous 220, the new Eliminator version requires...More Details »
AFR Aluminum Heads - SBF
AFR 195cc Renegade Ford head is debuting in our lineup and almost defies the law of physics flowing a whopping 315 CFM from a modest sized intake port. This head comfortably outflows its 10cc...More Details »
AFR Intake Manifolds - SBC
SBC Titan Intake Manifolds are the next generation of high performance.
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.
Aluminum Valve Covers - BB Chevy
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 or street machine....More Details »
Aluminum Valve Covers - SB Chevy
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 »
Aluminum Valve Covers - SB Ford
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 »
Items 1-12 of 21

Airflow Research (AFR) Products

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Items 1-25 of 84
Description: 8mm Valve Stem Diameter, Bead Lock style, Complete Set, 16 pcs.
Item #: AFR9009
Condition: New
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Ships from Michigan.
Price: $40.00
Sale: $38.80
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Description: Standard 10 Degree Valve Locks 11/32"
Item #: AFR9005
Condition: New
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Price: $40.00
Sale: $38.80
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Description: SB-Ford, 58cc Combustion Chambers, 3/8'' Rocker Arm Studs, Sold in Pairs, 2 Pack
Item #: AFR1399
Condition: New
Limited Supply: Only 1 Left!
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Price: $1,643.00
Sale: $1,594.96
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Description: SB-Ford, 60cc Combustion Chambers, 5/16'' Pedestal Rocker Arm Mounting, CARB EO #250-3, Sold in Pairs, 2 Pack
Item #: AFR1472
Condition: New
Limited Supply: Only 1 Left!
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Price: $1,643.00
Sale: $1,593.71
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Description: SB-Ford, 58cc Combustion Chambers, 3/8'' Rocker Arm Studs, CARB EO #250-3, Sold in Pairs, 2 Pack
Item #: AFR1402
Condition: New
Limited Supply: Only 0 Left!
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Price: $1,643.00
Sale: $1,594.96
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Description: SB-Ford, 72cc Combustion Chambers, 3/8'' Rocker Arm Studs, Sold in Pairs, 2 Pack
Item #: AFR1387
Condition: New
Limited Supply: Only 1 Left!
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FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $1,643.00
Sale: $1,594.96
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Description: SB-Ford, 58cc Combustion Chambers, 3/8'' Rocker Arm Studs, Sold in Pairs, 2 Pack
Item #: AFR1388
Condition: New
Limited Supply: Only 6 Left!
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Price: $1,643.00
Sale: $1,593.71
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Description: SB-Ford, 58cc Combustion Chambers, 3/8'' Rocker Arm Studs, CARB EO #250-3, Sold in Pairs, 2 Pack
Item #: AFR1422
Condition: New
Limited Supply: Only 2 Left!
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Price: $1,643.00
Sale: $1,593.71
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Description: SB-Chevy, 65cc Combustion Chambers, Angle Plug, Assembled, Sold in Pairs, 2 Pack
Item #: AFR1040
Condition: New
Limited Supply: Only 1 Left!
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Price: $1,647.00
Sale: $1,597.59
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Description: SB-Chevy, 65cc Combustion Chambers, Straight Plug, Assembled, Sold in Pairs, 2 Pack
Item #: AFR1034
Condition: New
Limited Supply: Only 4 Left!
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Price: $1,647.00
Sale: $1,597.59
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Description: SB-Chevy, 75cc Combustion Chambers, Angle Plug, Assembled, Sold in Pairs, 2 Pack
Item #: AFR1038
Condition: New
Limited Supply: Only 1 Left!
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Price: $1,647.00
Sale: $1,597.59
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Description: SB-Chevy, 75cc Combustion Chambers, Straight Plug, Assembled, Sold in Pairs, 2 Pack
Item #: AFR1036
Condition: New
Limited Supply: Only 1 Left!
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Price: $1,647.00
Sale: $1,597.59
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Description: SB-Chevy, Street CNC Porting, 1.290'' Hyd Roller Dual Valve Spring, 58cc Combustion Chambers, Angle Spark Plug, Assembled, CARB OE #D-250-2, Sold in Pairs, 2 Pack
Item #: AFR1031
Condition: New
Limited Supply: Only 1 Left!
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Price: $1,965.00
Sale: $1,906.05
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Description: SB-Ford, 58cc Combustion Chambers, 3/8'' Rocker Arm Studs, CARB EO #250-3, Sold in Pairs, 2 Pack
Item #: AFR1426
Condition: New
Limited Supply: Only 1 Left!
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FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $2,109.00
Sale: $2,045.73
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Save: $63.27
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Description: SB-Ford, 58cc Combustion Chambers, 3/8'' Rocker Arm Studs, Sold in Pairs, 2 Pack
Item #: AFR1381
Condition: New
Limited Supply: Only 1 Left!
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FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $2,109.00
Sale: $2,045.73
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Description: SB-Ford, 72cc Combustion Chambers, 3/8'' Rocker Arm Studs, Sold in Pairs, 2 Pack
Item #: AFR1383
Condition: New
Limited Supply: Only 2 Left!
Same Day Shipping!
FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $2,109.00
Sale: $2,045.73
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Description: Race Porting Cylinder Heads, Aluminum, Assembled, 205cc Intake, Small Block Ford , (Set of 2)
Item #: AFR1450
Condition: New
Limited Supply: Only 3 Left!
Same Day Shipping!
FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $2,109.00
Sale: $2,045.73
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Description: SB-Ford, 72cc Combustion Chambers, 205cc Intake Ports, 7/16'' Rocker Arm Studs, Sold in Pairs, 2 Pack
Item #: AFR1458
Condition: New
Limited Supply: Only 1 Left!
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FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $2,109.00
Sale: $2,045.73
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Description: SB-Chevy, Race Ready CNC Porting, 75cc Combustion Chambers, Standard Exhaust Port Configuration, Angle Spark Plug, Assembled, Sold in Pairs, 2 Pack
Item #: AFR1050
Condition: New
Limited Supply: Only 2 Left!
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FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $1,799.00
Sale: $1,745.03
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Description: SB-Chevy, Race Ready CNC Porting, 65cc Combustion Chambers, Standard Exhaust Port Configuration, Angle Spark Plug, Assembled, Sold in Pairs, 2 Pack
Item #: AFR1054
Condition: New
Limited Supply: Only 3 Left!
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Price: $1,799.00
Sale: $1,745.03
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Description: SB-Chevy, Competition Package Race Ready CNC Porting, 65cc Combustion Chambers, Standard Exhaust Port Configuration, Angle Spark Plug, Assembled, Sold in Pairs, 2 Pack
Item #: AFR1103
Condition: New
Limited Supply: Only 4 Left!
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Price: $2,149.00
Sale: $2,084.53
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Description: SB-Chevy, Race Ready CNC Porting, 65cc Combustion Chambers, Standard Exhaust Port Configuration, Angle Spark Plug, Assembled, Sold in Pairs, 2 Pack
Item #: AFR1110
Condition: New
Limited Supply: Only 4 Left!
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FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $2,199.00
Sale: $2,133.03
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Description: SB-Chevy, Race Ready CNC Porting, 75cc Combustion Chambers, Standard Exhaust Port Configuration, Angle Spark Plug, Assembled, Sold in Pairs, 2 Pack
Item #: AFR1112
Condition: New
Limited Supply: Only 1 Left!
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FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $2,199.00
Sale: $2,133.03
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Description: SB-Chevy, Competition Package Race Ready CNC Porting, 65cc Combustion Chambers, Spread Exhaust Port Configuration, Angle Spark Plug, Assembled, Sold in Pairs, 2 Pack More Details »
Item #: AFR1114
Condition: New
Limited Supply: Only 0 Left!
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Price: $2,199.00
Sale: $2,133.03
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Description: Race Porting Cylinder Heads, Aluminum, Assembled, 220cc Intake, Small Block Ford , (Set of 2)
Item #: AFR1451
Condition: New
Limited Supply: Only 0 Left!
Same Day Shipping!
FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $2,199.00
Sale: $2,133.03
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Save: $65.97
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Items 1-25 of 84

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.