OK this is an unusual question but it's a thought I had.

If you had a valuable block with screwed up, or bad/damaged, motor mount pads, I know you can rig up a front motor mount plate.

What about welding a flat plate, say 4" x 4", on each side of the block, IN ANY NEW SPOT YOU DESIRE, to use "conventional-style" mounts (Mopar, Chevy, Ford).

Welding a small steel plate to the outside of a cast iron block should not produce stress that would make any difference in operation.
(This would also work with an aluminum plate welded to an aluminum block.)

For those who would prefer side mounts rather than a front motor plate.

What opinions are out there ? Why might this not work ?