Like the old chicken nugget TV ad used to say- - - - -"Parts is parts!" Chunks of metal, either pistons, connecting rods, valves, or bearings, don't care where the part number crunchers say they're supposed to fit- - - -as long as they get the job done and the clearances turn out right, there's nothing wrong with mixing and matching!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!