I've heard rumors of a spray-oiler engine in 1953 with a later model head bolt pattern. What's the chance one of those heads found its way onto a full pressure 54 engine? If it bolts on, it should work. It will have a lower compression ratio than an 848 head.
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!