My buddy tossed a rod on his 400 sbc dirt late model years ago...two weeks left in the season. Scored the cylinder. Fixed it by boring the hole time fit a Ford piston he picked from his junk pile... Bored the small end of the rod to fit the junk piston, picked the rings from a trash can then went out and won the feature two weeks later!
I've torn down Ford flatheads that had 3 steel pistons and 5 aluminum ones....
