PnP

Polishing and porting your engines vital breathing parts is an important part of blueprinting your motor for maximum performance. Many street performance and racing engines that go through our machine shop go through a precision port and polishing process. This requires smoothing out and polishing of the intake and exhaust ports so that gases would flow through quicker. Porting, on the other hand, is enlargement and reshaping of the ports themselves. This is usually done when larger valves are installed. We have also found that the type of grit used in the intake is also important for proper atomization of gas/alcohol droplets or air/fuel mixture.

Why is port and polish work so important to your engine's performance? It reduces the restriction in the engine's intake and exhaust chambers. Reduce that restriction and you let more air into the cylinders. If you have more air, you can add more fuel. The result is increased horsepower.