Complete with piston kit (piston, rings, pin, and circlip), a New Cylinder and 330EX Big Bore Gasket kit. Free Shipping!!!!! (some filling on the cases are required. Base of new cylinder bigger than stock.) Super Nice kit and Guys using this kit that run the ATVA Nationals love it and we have sold tons of these kits. Any Questions shoot us an e-mail @ jciracing@comcast.net and we'll try our best to answer your questions.