Eastwood porting kit
![eastwood porting kit eastwood porting kit](https://img.youtube.com/vi/penPxxk_Veo/1.jpg)
Use a scribe to mark the areas to be matched.
![eastwood porting kit eastwood porting kit](https://i.pinimg.com/originals/cc/94/9b/cc949b08fb8153c4a82c94f5d979993d.jpg)
Place the high-performance intake manifold gasket(s) and exhaust gasket(s) in place and secure them with the bolts or nuts. Start by cleaning the ports and then painting them with layout fluid. In fact, a good port and polish job is said to be worth an additional 10 percent in both horsepower and in fuel economy, so it’s worth it - if you have the engine apart and access to the cylinder head(s). 80 grit sandpaper provides an excellent surface finish that is not too smooth and not too rough for the air/fuel mixture. It is recommended to use 80 grit sandpaper rolls to smooth the surface and match the ports to the gaskets. You will also need an air compressor and an air-operated, high-speed grinding tool.
![eastwood porting kit eastwood porting kit](https://garage.eastwood.com/wp-content/uploads/2015/10/p42986.jpg)
First of all, you will need good eye protection. Porting and polishing can be a do-it-yourself job, but you will need some specialized equipment. Since an internal combustion engine is basically an air pump (and the more air you put in and take out, the more horsepower it makes, and the more efficient it is) the “free” horsepower provided by the porting and polishing operation makes more sense. Computer Assisted Design (CAD) has improved the shape of stock cylinder heads in recent years, but there is still some “free” horsepower and fuel economy to be had by “cleaning up” the intake and exhaust ports as well as removing some of the sharp edges from the combustion chamber as well. The reason that automobile and engine manufacturers don’t port and polish during the assembly process is that, as you will learn, it is very time consuming.