Jackisaacs

I really just want an oddity bike, wont be my only one just want something to keep my hands busy! Loved the chopper with the plane engine though

Hi all, new to the group. Does anyone know if a wr250 engine will fit im a 2014 wr125? I know its silly, id may aswell buy the whole 250 but id like a little project bike thats not loads of work or expensive. I would like to know if id have to put in new mounts or if it just outright will not fit. Thankyou *Edit* yes im aware the chain is on the other side, so also are there any suggestions of good bikes for tinkering with and swapping engines etc?