I have recently acquired a 1982 suzuki gs250 that I'm turning into a cafe racer. The current powerplant is shall we say...lacking...in the get up and go department. i was wondering what engine would be the cheapest to put into my frame. I'm willing to get an engine and rebuild it but i don't have the ability to do any fab work as of now. i was thinking gs 400 or gs 450 engine? I heared they bolt in? I could be wrong. wiring isn't an issue for me.