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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 1-25 of 31
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 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 »
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 - NEW
Check out the Recently Listed Cylinder Heads.
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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 - NEW
Check out the Recently Listed Intake Manifold Gaskets.
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 - NEW
Check out the Recently Listed Intake Manifolds.
Rocker Arm Fastener Kits - NEW
Check out the Recently Listed Rocker Arm Fastener Kits.
Rocker Arm Stud Girdles - NEW
Check out the Recently Listed Rocker Arm Stud Girdles.
Rocker Arms and Components - NEW
Check out the Recently Listed Rocker Arms and Components.
Stud Girdles
Pit Stop USA is The Online Motorsports Superstore! We feature Stud Girdles at low everyday prices.
Valve Cover Gaskets - NEW
Check out the Recently Listed Valve Cover Gaskets.
Valve Covers - NEW
Check out the Recently Listed Valve Covers.
Items 1-25 of 31

Airflow Research (AFR) Products

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Items 1-25 of 132
NEW!
Description: Valve Spring, Dual Spring, 220 lb./in Spring Rate, 1.550 in OD, Each
Item #: AFR8000
Condition: New
Same Day Shipping!
Ships from Michigan.
Price: $15.99
Sale: $15.00
Save: 6%
Save: $0.99
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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 8 Left!
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Ships from Michigan.
Price: $40.00
Sale: $38.80
Save: 3%
Save: $1.20
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Description: Valve Lock, 10 Degree, 11/32 in Valve Stem, Standard Height, Steel, Natural, Set of 32 Standard 10 Degree Valve Locks 11/32"
Item #: AFR9005
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
Ships from Michigan.
Price: $40.00
Sale: $38.80
Save: 3%
Save: $1.20
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NEW!
Description: 11/32 Bronze Guide .505 OD SBC/SBF
Item #: AFR9056
Condition: New
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Ships from Michigan.
Price: $11.00
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NEW!
Description: LS3 12-Degr Cylinder Heads Fully CNC Ported
Item #: AFR1845
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $2,720.00
Sale: $2,638.00
Save: 3%
Save: $82.00

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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 Small Block Ford, 58cc Combustion Chambers,...More Details »
Item #: AFR1399
Condition: New
Limited Supply: Only 2 Left!
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FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $1,768.00
Sale: $1,715.00
Save: 3%
Save: $53.00

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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 Small Block Ford, 72cc Combustion Chambers,...More Details »
Item #: AFR1387
Condition: New
Limited Supply: Only 0 Left!
Same Day Shipping!
FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $1,768.00
Sale: $1,715.00
Save: 3%
Save: $53.00

Description: Cylinder Head, Renegade Street, Assembled, 2.020 / 1.600 in Valves, 188 cc Intake, 58 cc Chamber, 1.290 in Springs, Aluminum, Small Block Ford, Pair Small Block Ford, 58cc Combustion Chambers,...More Details »
Item #: AFR1422
Condition: New
Limited Supply: Only 2 Left!
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FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $1,768.00
Sale: $1,715.00
Save: 3%
Save: $53.00


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 Small Block Chevy, 65cc Combustion Chambers,...More Details »
Item #: AFR1040
Condition: New
Limited Supply: Only 0 Left!
Same Day Shipping!
FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $1,770.00
Sale: $1,717.00
Save: 3%
Save: $53.00

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 Small Block Chevy, 75cc Combustion Chambers,...More Details »
Item #: AFR1038
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $1,770.00
Sale: $1,717.00
Save: 3%
Save: $53.00

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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 Small Block Chevy, 75cc Combustion Chambers,...More Details »
Item #: AFR1036
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $1,770.00
Sale: $1,717.00
Save: 3%
Save: $53.00

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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 Small Block Chevy, Street CNC Porting, 1.290'' Hyd...More Details »
Item #: AFR1031
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $1,898.00
Sale: $1,841.00
Save: 3%
Save: $57.00

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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 Race Porting Cylinder Heads, Aluminum, Assembled,...More Details »
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: $2,225.00
Sale: $2,159.00
Save: 3%
Save: $66.00


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 Small Block Ford, 72cc Combustion Chambers, 205cc...More Details »
Item #: AFR1458
Condition: New
Limited Supply: Only 2 Left!
Same Day Shipping!
FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $2,225.00
Sale: $2,159.00
Save: 3%
Save: $66.00


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 Small Block Chevy, Competition Package Race...More Details »
Item #: AFR1103
Condition: New
Limited Supply: Only 1 Left!
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FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $2,274.00
Sale: $2,206.00
Save: 3%
Save: $68.00

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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 Small Block Chevy, Race Ready CNC Porting, 75cc...More Details »
Item #: AFR1050
Condition: New
Limited Supply: Only 3 Left!
Same Day Shipping!
FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $1,881.00
Sale: $1,825.00
Save: 3%
Save: $56.00


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 Small Block Chevy, Race Ready CNC Porting, 65cc...More Details »
Item #: AFR1054
Condition: New
Limited Supply: Only 3 Left!
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FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $1,881.00
Sale: $1,825.00
Save: 3%
Save: $56.00


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 Small Block Chevy, Race Ready CNC Porting, 65cc...More Details »
Item #: AFR1110
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $2,336.00
Sale: $2,266.00
Save: 3%
Save: $70.00


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 Small Block Chevy, Race Ready CNC Porting, 75cc...More Details »
Item #: AFR1112
Condition: New
Limited Supply: Only 0 Left!
Same Day Shipping!
FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $2,336.00
Sale: $2,266.00
Save: 3%
Save: $70.00

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 Race Porting Cylinder Heads, Aluminum, Assembled,...More Details »
Item #: AFR1451
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $2,280.00
Sale: $2,212.00
Save: 3%
Save: $68.00


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 Small Block Ford, 72cc Combustion Chambers, 220cc...More Details »
Item #: AFR1456
Condition: New
Limited Supply: Only 0 Left!
Same Day Shipping!
FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $2,280.00
Sale: $2,212.00
Save: 3%
Save: $68.00

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 Small Block Chevy, Competition Package Race...More Details »
Item #: AFR1121
Condition: New
Limited Supply: Only 0 Left!
Same Day Shipping!
FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $2,336.00
Sale: $2,266.00
Save: 3%
Save: $70.00

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 Small Block Chevy, Competition Package Race...More Details »
Item #: AFR1124
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $2,336.00
Sale: $2,266.00
Save: 3%
Save: $70.00


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 Small Block Chevy, Competition Package Race...More Details »
Item #: AFR1120
Condition: New
Limited Supply: Only 0 Left!
Same Day Shipping!
FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $2,336.00
Sale: $2,266.00
Save: 3%
Save: $70.00

Description: Cylinder Head, LSx Mongoose Street, Assembled, 2.080 / 1.600 in Valves, 230 cc Intake, 65 cc Chamber, 1.270 in Springs, Aluminum, GM LS-Series, Pair LS1 / LS2 / LS6 Chevy, 65cc Combustion Chambers,...More Details »
Item #: AFR1660
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
FREE SHIPPING! Oversized / Overweight Fees Waived On This Item! Ships from Michigan.
Price: $2,671.00
Sale: $2,591.00
Save: 3%
Save: $80.00

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Items 1-25 of 132

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.