My engine on the racing kart just took a ----. popped a head gasket at 9k rpms. woooooo.

The kart would get to 80 with just one gear. but now im looking for something faster. I want to find a complete engine and tranny from a pocketbike or a dirtbike to put on it. Looking for a running engine. and a tranny that works, preferably clutchless as i dont want the trouble of putting in a clutch as well.

Let me know if you got anything for trade, to buy, or your just looking to get rid of(free would kick ***)