Looking to drop an engine into my 304h on the cheap. It looks like it originally came with a 4TNE98, could I also use a 4TNE92 or a 4TNE86? Do I have to worry about electrical differences, bellhousing differences, motor mount differences, etc?
Well, I would wait and see if you need anything different, but then I would start with Guardian Coupling
That was a common generator engine. But if you get one where you have to fab all the coupling stuff, I wonder if a similar Isuzu or Kubota engine might also be usable. It is going to be a lot of work regardless I am sure.