Whet year is the "original 235"? If it's a 54 or newer, inspect the connecting rod bearings. Loose rod and/or main bearings cause low oil pressure if a 235 engine has a pressurized crankshaft. (54-63). Any other approach is wishful thinking. "Wish in one hand- - - - -etc."!

"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!