Originally Posted by TCSVN
especially if you pick up a couple of KTM 450 EXC motors for spares if the mounts will match up. I haven't looked at that part yet, but I think it might be close.
the engine mounts & frame is totally different between the FE450 and the 450EXC, no way its interchangable
You can buy a new spare FE570 motor for racing for about AUD$7,000, so I guess around USD$5,500 as things are cheaper over in the USA