Also available in a mini die grinder kit, or with just the rolls and mandrels. You will need an electric or air powered high speed die grinder, some abrasive rolls and the mandrels they mount to, all of which are included in the Eastwood Engine Porting Kit with Die Grinder.
There are not a lot of tools needed to do your first porting and polishing job. Be extra careful around loose fitting clothing, jewelry and long hair tuck it in, remove it, or tie it back before you start. Gloves are also a good idea, not only to keep your hands clean, but to keep from grinding off any fingerprints.
Safety googles and a dust mask are a minimum you may want a full face shield. Porting and polishing involves grinding away metal and as such there will be grit, grindings and dust flying once you spin up the tools. Doing just the basic gasket matching, port smoothing and bowl blending it is not unusual to see 10% power increases across the board.įirst things first, you need the proper safety gear. But there are certain easily done basic techniques that even a beginner can learn and that work on all engines. The expert port polishers are still guys with a lifetime of experience and the ability to visualize the invisible gas flow at high speed in 3D. Strange as it may seem, just making the intake and exhaust passages bigger will not always improve performance, and may actually hurt it.
Porting cylinder heads for better performance is as much an art as it is a science.