350x motor in 200x frame?

[medicalssi]

Does anyone know if a 350x motor wil fit in a 200x frame? Or what Motors will without getting to crazy with frame mods? Ive seen 3wheelers with street bike engines in them ...in Magazines,,,, im sure they dont just drop in.....thanx for the feedback

[smokinp]

I think it could be done,but you need to know how to weld.thinking about it?