Niche Industries 1505 is a new Cylinder Kit and has everything you need to rebuild your Top End including: Cylinder, Cylinder Head, Piston, Piston Rings, Piston Pin, Piston Clips, Head and Base Gaskets, Needle Bearing, Cylinder Studs, Stud Nuts and an NGK Spark Plug. The Cylinder is solid cast iron and has been treated with a black powder coat for that classic Suzuki look. It has been factory-honed and deburred. The Cylinder does not include a vacuum port. The Cylinder Head is cast aluminum. All Kit components are manufactured to the same size and standards as your originals and are engineered to exceed stock standard performance. There are no modifications necessary, when your Top End rebuild Kit arrives, your parts are ready to install. Quality and Performance guaranteed!