Hello everybody, I'm new to the forums and while I have a pretty much stock 1980 SR250 I would like some more power. So I got to looking on craigslist and found a 400 Special. It's not running right now, but shouldn't take much, not froze or anything, and I'm only getting it for $170, can't beat it. Anyway my question is, how hard would it be to swap the 400 into the 250 frame? Is it even possible? Just looking for some help before I get it and start tearing it apart. Thanks for the help, I'll give a pic of my bike!