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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.

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Items 1-21 of 21
Description: Exhaust Valve, 1.570 in Head, 8 mm Valve Stem, 5.030 in Long, Stainless, Small Block Ford, Each
Item #: AFR7248-1
Condition: New
Limited Supply: Only 0 Left!
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Price: $26.99
Sale: $26.04
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Description: Exhaust Valve, 1.600 in Head, 8 mm Valve Stem, 5.030 in Long, Inconel, Small Block Chevy / Ford, Each
Item #: AFR7260-1
Condition: New
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Price: $55.99
Sale: $55.37
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Description: Exhaust Valve, 1.600 in Head, 8 mm Valve Stem, 5.030 in Long, Stainless, Small Block Chevy / Ford, Set of 8
Item #: AFR7254-8
Condition: New
Limited Supply: Only 6 Left!
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Price: $206.99
Sale: $204.26
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Description: Exhaust Valve, 1.880 in Head, 11/32 in Valve Stem, 5.450 in Long, Stainless, Big Block Chevy, Each
Item #: AFR7630-1
Condition: New
Limited Supply: Only 3 Left!
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Price: $27.99
Sale: $27.48
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Description: Exhaust Valve, LS1, 1.600 in Head, 8 mm Stem, 4.907 in Long, Stainless, GM LS-Series, Each
Item #: AFR7228-1
Condition: New
Limited Supply: Only 1 Left!
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Price: $26.99
Sale: $26.04
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Description: Exhaust Valve, Street, 1.600 in Head, 8 mm Stem, 4.950 in Long, Stainless, Small Block Chevy / Ford, Each
Item #: AFR7250-1
Condition: New
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Price: $19.99
Sale: $19.32
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Description: Exhaust Valve, High Performance, 1.880 in Head, 11/32 in Valve Stem, 5.450 in Long, Stainless, Big Block Chevy, Each
Item #: AFR7631-1
Condition: New
Limited Supply: Only 0 Left!
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Price: $29.99
Sale: $29.04
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Description: Intake Valve, High Performance, 2.300 in Head, 11/32 in Valve Stem, 5.500 in Long, Stainless, Big Block Chevy, Each
Item #: AFR7626-1
Condition: New
Limited Supply: Only 8 Left!
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Price: $27.99
Sale: $27.48
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Description: Intake Valve, High Performance, 2.350 in Head, 11/32 in Valve Stem, 5.500 in Long, Stainless, Big Block Chevy, Each
Item #: AFR7627-1
Condition: New
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Price: $27.99
Sale: $27.48
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Description: Intake Valve, LSx, 2.020 in Head, 8 mm Stem, 4.900 in Long, Stainless, GM LS-Series, Each
Item #: AFR7207-1
Condition: New
Limited Supply: Only 2 Left!
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Price: $26.99
Sale: $26.04
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Description: Intake Valve, LSx, 2.080 in Head, 8 mm Stem, 4.900 in Long, Stainless, GM LS-Series, Each
Item #: AFR7208-1
Condition: New
Limited Supply: Only 3 Left!
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Price: $26.99
Sale: $26.04
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Description: Exhaust Valve, Race, 1.600 in Head, 8 mm Stem, 5.030 in Long, Stainless, Small Block Chevy / Ford, Each
Item #: AFR7254-1
Condition: New
Limited Supply: Only 5 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $26.99
Sale: $26.04
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Description: Intake Valve, Race, 2.080 in Head, 8 mm Stem, 5.000 in Long, Stainless, Small Block Chevy, Each
Item #: AFR7255-1
Condition: New
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Price: $26.99
Sale: $26.04
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Description: Intake Valve, Race, 2.100 in Head, 8 mm Stem, 5.080 in Long, Stainless, Small Block Chevy / Ford, Set of 8
Item #: AFR7256-8
Condition: New
Limited Supply: Only 0 Left!
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Price: $206.99
Sale: $204.26
Save: 1%
Save: $2.73
Description: Intake Valve, Race, 2.100 in Head, 8 mm Stem, 5.080 in Long, Stainless, Small Block Chevy / Ford, Each
Item #: AFR7256-1
Condition: New
Limited Supply: Only 0 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $26.99
Sale: $26.04
Save: 4%
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Description: Intake Valve, Race, 2.125 in Head, 8 mm Stem, 5.000 in Long, Stainless, Small Block Chevy / Ford, Each
Item #: AFR7253-1
Condition: New
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Price: $26.99
Sale: $26.04
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Description: Intake Valve, Race, 2.250 in Head, 11/32 in Stem, 5.245 in Long, Stainless, Big Block Ford, Each
Item #: AFR7551-1
Condition: New
Limited Supply: Only 2 Left!
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Price: $27.99
Sale: $27.48
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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
Limited Supply: Only 0 Left!
Same Day Shipping!
Orders over $149 ship free. Oversize items are excluded.
Price: $19.99
Sale: $19.32
Save: 3%
Save: $0.67
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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Price: $19.99
Sale: $19.32
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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 8 Left!
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Price: $19.99
Sale: $19.32
Save: 3%
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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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Items 1-21 of 21

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.