The balancer will fit, but the position of the water pump on the newer engine cannot be hidden, even with Dave's relocation adapter and the 216 water pump. Ray Charles could "see" the difference! What do you plan to do about the pushrod cover height difference?

"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!