Nope, gotta call BS on that claim. The small block V-8 crankshaft flange bolt pattern didn't change for 30-something years, until they went to the 1-piece rear main seal. That 6-hole, 3-dowel arrangement is a 6-cylinder bolt pattern.
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!