Was a 235 ever used in a 62 passenger car? I believe the only 235 application in 62 was in a limited number of trucks. If you're actually working with a 230 or 250 engine, there will be a considerable number of fit issues- - - - -bellhousing bolt pattern, engine length, and motor mount position problems. Can you post some pictures, and/or casting numbers?
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!