Is it possible to put a Honda 450R or even a 250R motor into a 2013 Honda CRF 250L Bike?

Is it possible to put a Honda 450R or even a 250R motor into a 2013 Honda CRF 250L Bike?

Not an easy slip-in, if that is what you are asking.

Yes but you might wanna go see a mechanic or somebody who is really good at putting motorcyles together and apart i pretty sure it will go as planed