Motor blew up through a rod through the case. I bought new cases and a used crankshaft. You would need to buy a top end kit and have the jugs redone. Or find new ones. Sled had 21xx miles on it when it went clean sled for age no rips or tears in track belt drive chaincase delete alternative impact narrowing front end. Selling due to no time to assemble it. If it dont sell It will sit till I find time to rebuild it.