Ditto on boring the hole bigger. It would require a BIG lathe, or a Bridgeport mill and a fly cutter to open up the hole in the bell housing to fit the bearing retainer on the 465 transmission. That hole must be bored concentric with the crankshaft centerline to avoid runout and vibration problems.
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!