I've also used a water pump pulley for a Ford small block V8 (289, 302, etc.) on a Chevy pump by drilling the center hole to fit and drilling or slotting the fan bolt holes for the Chevy pump bolt pattern. There's even a 2 sheave version of that pulley that can be used for driving an A/C compressor or a power steering pump.
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!