Can another engine be used on a Massey Ferguson 1035?

The 1035 is an older, all mechanical tractor, so it could be done without too much difficulty, insofar as the actual engine swap goes.. new engine mounts might have to be fabricated, depending on what engine you go with. The biggest problem will be mating that engine to the Massey Ferguson transmission, as the clutch, flywheel, and bell housing may not necessarily mount up.