Please don't scrap the Babbit engine. That one's probably got a spray-oiler 235, and they're somewhat scarce. With a little creative machining, a rotating assembly from a later model full pressure engine can be adapted to the earlier block, which would retain the original appearance. It's also possible to get up to 270 cubic inches in a spray-oiler 235 block.
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!