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

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.

Airflow Research advanced to full production of cylinder heads in the early 90’s 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 have 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-90’s, 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.