engine

does anyone know what heads and engine parts will work for my 2000 artic cat 400 my wife blew it up and i need a head, cam, and rockers also a piston will 454 and 500 series engine parts work on this they look exactly the same just not sure whats different thanks any help would be great

I just bought a 2007 prowler with what i think is a bevel gear problem. The guy I bought it from said he was in thick mud shifting from forward to reverse and hammering on it and then "bang" then all the oil drained out of the block. Ive pulled the engine out and wondering if anyone has rebuilt...