I dont know if this has been covered or not on this forum but i was watching a youtube video on putting a tractor motor in a truck and making 50+ mpg's. It was in a 2wd i think but i'd like to do this to a 4x4 ik it wouldnt get 50+ mpg's BUT it would be better then the less than 18 im gettin now. Does anyone know of a tractor motor that is capable of being able to do interstate speeds at a low enough rpm at 80 mph? I know alot of that will be the diff's and trans but what engine would be the best to yank out of a tractor and start fabbing up the engine mounts and all that? Any info and input you have feel free. Thanks y'all

