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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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Drag Parts USA is The Online Drag Racing 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.

Early Years - Innovation (1970-1980)

Airflow Research early years were defined by their high-powered porting of cylinder heads, innovative porting techniques such as fast burning chambers, D-shaped big block Chevy exhaust ports, hurricane chambers, and their CNC ported cylinder heads. In 1979, AFR pioneered CNC porting with their then revolutionary tape fed CNC machine. Airflow Research quickly established itself as a premiere supplier to the fastest race teams in the country. Names like Bill Jenkins Grumpies Toy, Bob Gliddens Fords and Chryslers, Warren Johnson, and Frank Iaconio were getting their power from AFR aluminum cylinder heads. AFRs Technological Revolution (1980-1990)

Airflow Research cylinder heads became a key consultant to General Motors, designing cast iron and aluminum heads for the still-popular phase 3, 4, 5, and 6 Bowtie Small Block Chevy. AFR designed the big block D port aluminum pro-stock racing head, at that time the state-of-the-art. AFR had also branched out into NASCAR, porting cylinder heads for top drivers like Darrel Waltrip, Cale Yarbrough, Richard Childress, Junior Johnson, Richard Petty, AJ Foyt, Harry Gant, and Neil Bonnet, to name a few. Airflow Researchs pioneering use of wet-flow technology was allowing AFR cylinder heads to obtain unequaled flow and power.

Total Manufacturing (1990-Present)

Airflow Research advanced to full production of cylinder heads in the early 90s by incorporating advanced high density Cast Billet technology into their southern California facility. Now able to maintain full control of design and porting technology, AFR combined their 30 years of high performance racing experience into making aluminum cylinder heads available to a much broader customer base. For the first time, racers were able to obtain full 5-axis CNC ported racing aluminum cylinder heads at an affordable price. In the mid-90s, Airflow Research was the first to offer cylinder heads for the popular Gen-2 Small Block Chevy LT-1 and LT-4 engine programs. The first to receive a CARB EO number for emission legal aluminum street heads. AFR also introduced the patented Hydra Rev to eliminate Hydraulic Roller valve float. In 2004 AFR was the first to introduce the popular Gen 3 LS1 aftermarket cylinder head.

Into The Future

Airflow Researchs design, engineering, and manufacturing technology never rests. As a leader today, Airflow Research is investing in the horsepower of tomorrow with new manufacturing technology, complex dyno testing, and proprietary flow testing methods. And to assure a long standing tradition to performance, were bringing up a new generation of racers and engineers to meet the demands of tomorrows engine builders. DragPartsUSA.com features Airflow Research (AFR) products at low everyday prices.

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