iv never seen one myself, but as we speak im working on putting a 600cc street bike engine into my warrior frame, sence i just blew my motor up pretty much :-/ the topend atleast, burnt cam, bent valves etc.
ANYTHING can be put into a warrior frame with enough effort :-* its just a mater of money, resources, skills, and if you really wanna kill yourself on a atv with a streetbike engine in it lol hero, hows that goin for you anyways?