Eastwood Engine Porting KitEngine Porting Kit can help your engine generate more power Build the best performance engine or restore like new performance to your older powerplant using Eastwood cylinder head porting tools and accessories. When serious engine builders "blueprint" an engine, they'll "port" or smooth off rough head castings around the intake and exhaust ports for smoother airflow. The engine can then "breathe" easier, resulting in greater power and efficiency. Not