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CNC Ported Heads
In the past CNC Porting was used mostly for Formula 1 and NASCAR.
We now offer CNC ported Heads for Dirtbikes and ATV's.

We took our best hand ported head and had it Digitized and CNC ported. The CNC Machine does not make the porting job better. The most important advantage of CNC porting is that it duplicates the porting job exactly the same every time. Therefore if it is a bad porting job it will be exactly as bad everytime!!! If you spend 1000's of hours developing a porting job (through flow testing, and dyno testing) it can be digitized then duplicated exactly the same every time on a CNC porting machine. The result is maximum power and consistency. The traditional method of hand porting takes hours and is prone to variations. With CNC porting, you get a more consistent port, every time. Although the CNC machine is very efficient at machining the ports quickly and exactly the same every time is is not very practical for polishing work. The main advantage of Polishing the combustion chamber and exhaust port is to prevent carbon build up (and it looks really cool ). This step of the porting is still down by hand. The polishing process removes very little material so it has viirtually no effect on the shape of the port produced by the CNC machine. Intake ports are finished with a light grit sanding then glass bead blasted. The flow bench has shown that Bead blasting does not decrease air flow but it does help prevent "puddling of fuel" which is fuel droplets that can form on a polished surface. About $500.000.00 worth of the latest state of the art machining equipment is used to produce our CNC ported heads. See links below to read about this equipment and its advantages.
Brand new stock head___________New stock head with CNC Machined ports_____ CNC Machined ports and hand polishing



Click here to see a video of the Centroid CNC head porting machine

Click here to read about the Centroid CNC head porting machine

here is a quote from www.stockcarracing.com "Until just a few years ago, the Serdi was often seen as the state-of-the-art machine and was most used by the top pro racing shops. These days, there is a new player on the block when it comes to generating high-tech seat designs-the single-point-tool CNC Newen machine"

Click here to read the article about the Newen CNC valve seat cutting machine on stockcarracing.com