I'm always trying to re-engineer stuff in my mind at least. For example, I've been tossing around the idea of installing my Peugeot industrial diesel engine (from a Toro) into a Model B Allis, or something else. Usually, I figure I might as well buy an existing model that already incorporates my ideas. (Kubota?) Even if you can make it fit, it has to be strong enough to take the structural loading between front end and bell housing. '50's Ford used it's ohv six cylinder truck engine with two cylinders removed. It appears to be strong enough. I'm not sure about the Pinto. You may also want to look at the AMC/Jeep/Dakota 4 cyl. Another possibility is the old Chevy II four cyl, still used for boat motors. These were both shortened sixes. Maybe a three cyl Ford or Perkins engine can be made to fit (From a Dexta/2000/3000/4000). Quite a few Fords have been converted to six cyl and V8, but usually there is a subframe required to take the structural loads, even though there seems to be a lot of iron there. I recently saw a Farmall that had the front part of the engine broke off when it fell off a loading ramp. You'd have thought the tires or front axle would have taken the shock first. The vintage Olivers and Masseys seem to have the best idea: a massive structural frame with the engine cradled independently. No structural loading to stress or distort the engine. And various engines could be used: Waukesha, Chrysler, Perkins, Continental, Cummins, etc. In the end, you might as well look for another Continental. They're used everywhere, both agriculturally and industrially, though usually found in the flathead version.
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