There's a temporary fix- - - -install a Melling M-29 oil pump that's intended to fit a 1953-54 235 engine. It has bigger gears and slightly more volume than a 216 pump, and it's sort of a band-aid fix to compensate for worn bearings. It requires a little bit of creative plumbing of the pump pickup and pressure lines to make it fit.
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!