Unless you also installed some Ardun heads, they were still "flat", weren't they? My 47 Mercury had a 4" stroke 51 Merc crankshaft, an 80 overbore, and Offenhauser finned aluminum heads- - - - -and it was still a "flathead!"
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!