what ever happened here? Has anyone ever tried to drop in a 450r motor into a 250r frame? I have a full Lonestar 250r and I love the way it rides. I would like to have a 450r engine, intake, and exhaust that I can swap into my frame while still being able to keep the 250r set up. Any answers?

 

heyif do decide to get rid of the 250 r moter let me no .. i was goona put a it in mine but f i can get it already done then i will..
thanks

 

is this thread still alive?