im sure this has ran through the minds of a few people on here already if not then it might just be me thinking of a stupid idea, since the yfz450 and the yz450f share the same engine just the yfz engine is detuned a bit is it possible to swap the engines out with out a prob, thing is if im not mistaken they use a different ignition on the dirtbike and the dirtbike if 4speed, might it be possible to bolt up the yz450f engine to the yfz tranny and run it like that, reason for this is cause the dirtbike stock is putting out like 52hp when the quad needs some work to hit the 50's the work that is needed isnt much but when you do that same amount to the dirtbike engine it moves on up in the scale... any suggestions are welcomed and if it is a dumb idea that is fine, just havent seen anyone else ask and felt like asking