AFR Heads & Performance Parts
People trust Air Flow Research heads for performance and value. For over thirty years, Air Flow Research has been engineering cylinder heads that deliver unmatched flow and power output. AFR heads are flow-tested and subjected to a rigorous quality control process to ensure maximum performance in all applications. Airflow Research products find themselves on the fastest race cars and the most powerful street machines in the country. Airflow Research mission is to manufacture the highest quality, best performing cylinder heads and JEGS has the lowest prices on all of AFR cylinder heads with in-stock inventory ready to ship to your door.
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For over three decades, Air Flow Research has designed and manufactured cylinder heads, valves, rocker arms, intake manifolds and other performance parts that exceed OEM specs for durability and performance. Itâs made them a preferred source for parts for some of the fastest race cars and most high-performance street machines to be found anywhere.
This is your destination to find high performance cylinder heads for Chevrolet Vortec and LS engines, older small block and big block Chevrolets, along with Ford small block heads. Heads are ready to install and bolt up, with no porting, relief or valve job needed. To round out your engine build, AFR also offers Eliminator Series aluminum intake manifolds with extra coolant ports installed for custom cooling system setups, as well as phenolic carburetor spacers, replacement rocker studs and stud girdles, valve cover gasket sets, valves and valve springs, exhaust header gaskets, head bolts and studs, valve covers and even engine assembly lube. With enhanced flow, top quality construction and materials and exacting specs, AFR heads and performance parts are found on some of the fastest machines in the United States, and for a good reason â they deliver better performance and better quality than just about anything on the market for Chevrolet or Ford engines.
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![Enforcer Valve Stem Seal for Small Block Chevy and Small Block Ford [Viton Rubber]](https://www.jegs.com/images/mini_100/0/033/033-6614.jpg)
AFR - AIRFLOW RESEARCH
Enforcer Valve Stem Seal for Small Block Chevy and Small Block Ford [Viton Rubber]
Part Number: 033-6614
![Enforcer Valve Stem Seal for Small Block Chevy and Small Block Ford [Viton Rubber]](https://www.jegs.com/images/mini_200/0/033/033-6614.jpg)
AFR - AIRFLOW RESEARCH
Enforcer Valve Stem Seal for Small Block Chevy and Small Block Ford [Viton Rubber]
Part Number: 033-6614
![Cast Aluminum Tall Valve Covers for Big Block Chevy [Polished]](https://www.jegs.com/images/mini_100/0/033/033-6722.jpg)
AFR - AIRFLOW RESEARCH
Cast Aluminum Tall Valve Covers for Big Block Chevy [Polished]
Part Number: 033-6722
![Cast Aluminum Tall Valve Covers for Big Block Chevy [Polished]](https://www.jegs.com/images/mini_200/0/033/033-6722.jpg)
AFR - AIRFLOW RESEARCH
Cast Aluminum Tall Valve Covers for Big Block Chevy [Polished]
Part Number: 033-6722

AFR - AIRFLOW RESEARCH
Dual Springs, Red Stripe for Hydraulic Roller Cam 1.270 in. O.D.
Part Number: 033-8019-16

AFR - AIRFLOW RESEARCH
Dual Springs, Red Stripe for Hydraulic Roller Cam 1.270 in. O.D.
Part Number: 033-8019-16
![7233-1 Inconel Solid Stem Exhaust Valve [1.600 in. Diameter]](https://www.jegs.com/images/mini_100/0/033/033-7233-1.jpg)
AFR - AIRFLOW RESEARCH
7233-1 Inconel Solid Stem Exhaust Valve [1.600 in. Diameter]
Part Number: 033-7233-1
![7233-1 Inconel Solid Stem Exhaust Valve [1.600 in. Diameter]](https://www.jegs.com/images/mini_200/0/033/033-7233-1.jpg)
AFR - AIRFLOW RESEARCH
7233-1 Inconel Solid Stem Exhaust Valve [1.600 in. Diameter]
Part Number: 033-7233-1
![PAC Racing Dual Springs, Orange Stripe for Solid Roller Cam 1.550 in. O.D. .800 I.D. [16]](https://www.jegs.com/images/mini_100/0/033/033-8000-16.jpg)
AFR - AIRFLOW RESEARCH
PAC Racing Dual Springs, Orange Stripe for Solid Roller Cam 1.550 in. O.D. .800 I.D. [16]
Part Number: 033-8000-16
![PAC Racing Dual Springs, Orange Stripe for Solid Roller Cam 1.550 in. O.D. .800 I.D. [16]](https://www.jegs.com/images/mini_200/0/033/033-8000-16.jpg)
AFR - AIRFLOW RESEARCH
PAC Racing Dual Springs, Orange Stripe for Solid Roller Cam 1.550 in. O.D. .800 I.D. [16]
Part Number: 033-8000-16

AFR - AIRFLOW RESEARCH
Fabricated Sheet Metal Valve Covers for Big Block Chevy w/18 Degree Heads
Part Number: 033-6728

AFR - AIRFLOW RESEARCH
Fabricated Sheet Metal Valve Covers for Big Block Chevy w/18 Degree Heads
Part Number: 033-6728
![Rocker Arm Stud Girdle Replacement Nuts for 7/16 in.-20 Studs [Full Roller Polylock]](https://www.jegs.com/images/mini_100/0/033/033-6214-16.jpg)
AFR - AIRFLOW RESEARCH
Rocker Arm Stud Girdle Replacement Nuts for 7/16 in.-20 Studs [Full Roller Polylock]
Part Number: 033-6214-16
![Rocker Arm Stud Girdle Replacement Nuts for 7/16 in.-20 Studs [Full Roller Polylock]](https://www.jegs.com/images/mini_200/0/033/033-6214-16.jpg)
AFR - AIRFLOW RESEARCH
Rocker Arm Stud Girdle Replacement Nuts for 7/16 in.-20 Studs [Full Roller Polylock]
Part Number: 033-6214-16
![Rocker Arm Studs for Small Block Chevy, GM LS, Small Block Ford Engines [3/8 in.]](https://www.jegs.com/images/mini_100/0/033/033-6409-16.jpg)
AFR - AIRFLOW RESEARCH
Rocker Arm Studs for Small Block Chevy, GM LS, Small Block Ford Engines [3/8 in.]
Part Number: 033-6409-16
![Rocker Arm Studs for Small Block Chevy, GM LS, Small Block Ford Engines [3/8 in.]](https://www.jegs.com/images/mini_200/0/033/033-6409-16.jpg)
AFR - AIRFLOW RESEARCH
Rocker Arm Studs for Small Block Chevy, GM LS, Small Block Ford Engines [3/8 in.]
Part Number: 033-6409-16
![Inconel Tulip Exhaust Valves for Big Block Chevy [1.880 in., 11/32 in. Stem]](https://www.jegs.com/images/mini_100/0/033/033-7633-8.jpg)
AFR - AIRFLOW RESEARCH
Inconel Tulip Exhaust Valves for Big Block Chevy [1.880 in., 11/32 in. Stem]
Part Number: 033-7633-8
![Inconel Tulip Exhaust Valves for Big Block Chevy [1.880 in., 11/32 in. Stem]](https://www.jegs.com/images/mini_200/0/033/033-7633-8.jpg)
AFR - AIRFLOW RESEARCH
Inconel Tulip Exhaust Valves for Big Block Chevy [1.880 in., 11/32 in. Stem]
Part Number: 033-7633-8
![Exhaust Valve for Small Block Chevy, Small Block Ford w/AFR Cylinder Heads [Conventional Keeper Groove]](https://www.jegs.com/images/mini_100/0/033/033-7250-1.jpg)
AFR - AIRFLOW RESEARCH
Exhaust Valve for Small Block Chevy, Small Block Ford w/AFR Cylinder Heads [Conventional Keeper Groove]
Part Number: 033-7250-1
![Exhaust Valve for Small Block Chevy, Small Block Ford w/AFR Cylinder Heads [Conventional Keeper Groove]](https://www.jegs.com/images/mini_200/0/033/033-7250-1.jpg)
AFR - AIRFLOW RESEARCH
Exhaust Valve for Small Block Chevy, Small Block Ford w/AFR Cylinder Heads [Conventional Keeper Groove]
Part Number: 033-7250-1
![Exhaust Valves for GM LS1 w/AFR Mongoose LS1 Cylinder Heads [Solid Stem]](https://www.jegs.com/images/mini_100/0/033/033-7228-8.jpg)
AFR - AIRFLOW RESEARCH
Exhaust Valves for GM LS1 w/AFR Mongoose LS1 Cylinder Heads [Solid Stem]
Part Number: 033-7228-8
![Exhaust Valves for GM LS1 w/AFR Mongoose LS1 Cylinder Heads [Solid Stem]](https://www.jegs.com/images/mini_200/0/033/033-7228-8.jpg)
AFR - AIRFLOW RESEARCH
Exhaust Valves for GM LS1 w/AFR Mongoose LS1 Cylinder Heads [Solid Stem]
Part Number: 033-7228-8
![6216-1 Small Block Chevy/Small Block Ford Stud Girdle Rocker Arm Nut [3/8 in.-24 Thread]](https://www.jegs.com/images/mini_100/0/033/033-6216-1.jpg)
AFR - AIRFLOW RESEARCH
6216-1 Small Block Chevy/Small Block Ford Stud Girdle Rocker Arm Nut [3/8 in.-24 Thread]
Part Number: 033-6216-1
![6216-1 Small Block Chevy/Small Block Ford Stud Girdle Rocker Arm Nut [3/8 in.-24 Thread]](https://www.jegs.com/images/mini_200/0/033/033-6216-1.jpg)
AFR - AIRFLOW RESEARCH
6216-1 Small Block Chevy/Small Block Ford Stud Girdle Rocker Arm Nut [3/8 in.-24 Thread]
Part Number: 033-6216-1
![Rocker Arm Stud Girdle Replacement Nuts for 7/16 in.-20 Studs [Polylock]](https://www.jegs.com/images/mini_100/0/033/033-6215-8.jpg)
AFR - AIRFLOW RESEARCH
Rocker Arm Stud Girdle Replacement Nuts for 7/16 in.-20 Studs [Polylock]
Part Number: 033-6215-8
![Rocker Arm Stud Girdle Replacement Nuts for 7/16 in.-20 Studs [Polylock]](https://www.jegs.com/images/mini_200/0/033/033-6215-8.jpg)
AFR - AIRFLOW RESEARCH
Rocker Arm Stud Girdle Replacement Nuts for 7/16 in.-20 Studs [Polylock]
Part Number: 033-6215-8
![Screw-In Rocker Studs for Big Block Chevy Intake and Big Block Ford [7/16 in., Chromoly]](https://www.jegs.com/images/mini_100/0/033/033-6407-16.jpg)
AFR - AIRFLOW RESEARCH
Screw-In Rocker Studs for Big Block Chevy Intake and Big Block Ford [7/16 in., Chromoly]
Part Number: 033-6407-16
![Screw-In Rocker Studs for Big Block Chevy Intake and Big Block Ford [7/16 in., Chromoly]](https://www.jegs.com/images/mini_200/0/033/033-6407-16.jpg)
AFR - AIRFLOW RESEARCH
Screw-In Rocker Studs for Big Block Chevy Intake and Big Block Ford [7/16 in., Chromoly]
Part Number: 033-6407-16
![7248-1 8 mm Exhaust Valve for Small Block Ford [1.570 in. Diameter x 5.030 in. O.A.L.]](https://www.jegs.com/images/mini_100/0/033/033-7248-1.jpg)
AFR - AIRFLOW RESEARCH
7248-1 8 mm Exhaust Valve for Small Block Ford [1.570 in. Diameter x 5.030 in. O.A.L.]
Part Number: 033-7248-1
![7248-1 8 mm Exhaust Valve for Small Block Ford [1.570 in. Diameter x 5.030 in. O.A.L.]](https://www.jegs.com/images/mini_200/0/033/033-7248-1.jpg)
AFR - AIRFLOW RESEARCH
7248-1 8 mm Exhaust Valve for Small Block Ford [1.570 in. Diameter x 5.030 in. O.A.L.]
Part Number: 033-7248-1

















