I have grafted a GM HEI upper housing onto several non-GM lower distributors. Any halfway competent machinist should be able to do the same thing. Which direction does the Stude distributor turn? CCW rotation would need a Buick or Olds upper, CW would need a Chevy.
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!