What is the H.P. of the CRF250 R/ X dirtbike engine... Would it make a good swap into a 300EX frame say for motocross????? Are there big bore kits for thst engine????? If the H.P. numbers are higher than a 330EX big bore with the CRF250 R /X being liquid cooled it would make for a reliable swap.... What do you guys think????

 

It would be easier to tell if it had been released yet, which it hasn't.

 

This would be interesting to see honda make a production version, bore the engine up to 300cc put it in the 300ex. They wouldn't put it in the 250ex because it is for beginners.

Try find out the hp of the yz250f, it will be very similar in power to the crf250. Personally, I'd use the honda, it will be better i think.

 

The FMF DYNO says 29 HP stock. If it's accurate, it would be a good idea to swap it into a 300ex

 

Put it this way it put out double the horsepower what the 300ex puts out id deffinatly do it.