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185cc SBF CNC Aluminum Cylinder Head

Welcome to BuyAFR.com                                                      

Buy AFR is the best at one thing - connecting our customers with AFR Cylinder Heads.

Airflow Research (AFR) provides the best bang for the buck performance CNC ported cylinder heads available today. AFR's Superior castings, superior performance, superior parts and superior products have put it as the leader in aftermarket cylinder heads. While everyone else is establishing a new CNC head program AFR has over a decade of experience and is developing a new wave of cutting edge cylinder heads.

Our focus is solely on providing AFR heads for you. Whether Small block Chevy (SBC), Small block Ford (SBF), Big Block Chevy (BBC) or LS1, LS6 Buy AFR .com is your source for AFR cylinder heads. We have one of the largest inventories in the country of the in stock cylinder heads you need. The biggest complaint about AFR's today is their leadtime; while other sources are quoting 4-12 week leadtimes on AFR heads we're shipping cylinder heads. If we don't have it we know where to find it if to get your cylinder heads fast.  

If you can't find the parts you're looking for on this site, please contact us to see if we can provide it for you. We currently have most major cylinder heads listed, if you need another configuration please contact us, we are able to provide and quote it. Due to the vast amount of AFR options and cylinder head configutations some options are custom quoted. We carry the FULL LINE of AFR heads so if it isn't listed we haven't been able to add it but can provide it without a problem. We pride ourselves on providing top-quality customer service, expert AFR technical advice and in stock AFR cylinder heads.

Thank you for your consideration - BuyAFR.com



AFR's History Over Time:: (from airflowresearch's homepage)

About AFR 
For over thirty years Airflow Research (afr) has been defining technological leadership in cylinder head manufacturing and flow dynamics. This complete commitment to performance has enabled Airflow Research products 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. 

Mission Statement
Our mission is to manufacture the highest quality, best performing cylinder heads while providing customer service that is heads above the competition.  

Early Years - Innovation (1970-1980)  

Airflow Research early years were defined by their high-powered porting of cylinder heads. By establishing innovative porting techniques such as fast burning chambers, D-shaped big block Chevy exhaust ports, Hurricane chambers, and their CNC ported 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 Glidden’s Fords and Chryslers, Warren Johnson, and Frank Iaconio were getting their power from AFR. 

AFR’s Technological Revolution (1980-1990)   
Airflow Research 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 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 Research’s 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 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 combined their 30 years of high performance racing experience into making heads available to a much broader customer base. For the first time, racers were able to obtain full 5-axis CNC ported racing heads at an affordable price. In the mid-90’s, Airflow Research was the first to offer 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 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 Research’s design, engineering, and manufacturing technology never rests. 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, we’re bringing up a new generation of racer’s and engineers to meet the demands of tomorrow’s engine builders.

What Makes AFR Special 
While Airflow Research has a great history of success in racing, it has been their ability to bring sophisticated porting technology to their wide assortment of cylinder heads that makes them truly special. Airflow Research pioneered the tooling and machinery necessary for true 5-axis CNC port machining, which allows total flow consistency from head to head once the optimal port design has been established. No other manufacturer incorporates this complete machining technology into their heads.
Research & Development

Cylinder head technology starts with research. That includes hundreds of hours designing and hand porting intake and exhaust ports to experiment and compare flow and horsepower characteristics. Airflow Research has tested thousands of cylinder heads over the years, for every application from top fuel dragsters to Saturday night street rods. Understanding the application and performance requirements is where AFR starts its design criteria. 

Dyno & Flow Testing 
To accurately evaluate port designs, AFR spends thousands of hours on engine dynos and flow rates are all compared to determine the optimal port design for specific applications. Testing does not stop in the lab; real life testing is also required, and AFR has spent more than their share of time at drag strips and circle tracks to carefully measure performance results. 

Special Manufacturing 
Air Flow Research uses the latest in metrology technology to bring you the finest cylinder heads available today. During the manufacturing process, cylinder head castings are mounted in the machining centers and then searched for and located using optical work coordinate probing systems. This insures the most accurate location possible to begin the machining process. This eliminates the “stacked tolerance/human error” from the equation when loading and unloading cylinder heads at each work station.

Quality Control 
Airflow Research’s racing roots have set the standard for quality. Because our first heads found themselves on the fastest cars in NHRA and NASCAR, we established benchmark quality control standards that put AFR heads in a category by themselves. Every aspect of the manufacturing process – from our in-house casting to final port finishing – is upheld to the highest quality standards. When you get AFR heads, you get the best. 

Competition Proven   
Airflow Research consistently out-flows and out-powers the competition! And that’s not just us talking – check out our website and read what the magazines have to say about AFR heads. Our flow rates surpass the competition – not just at maximum lift but especially at the critical .400"-.600" valve lift curve where so much of valve time is spent. What that means is more power from your engine at the track or on the streets. That’s AFR power!