I jumped through basically the same set of hoops trying to get the proper pulley setup for my 1956-235 in a 54 truck. After too much time spent on getting everything working I discovered that the pulley diameter was having an adverse effect on my pump speed and I still had a fan that was set too low in the radiator for proper cooling.

By using the adaptor plate behind an early 216-235 waterpump and fabricating a pass. side alternator mount, I run only one v-belt over the pump and drive my a/c compressor off the front v-groove in one of Buffalo's 2 groove modified 250 harmonic balancers. The up side of this is that it puts less strain on the pump and allows me to buy a replacement pump, if needed, from a local parts supplier. I have pics in my webshots album.

Dave

Webshot "Tips and tricks" and "Shoebox" Photo Albums

EXPERIENCE is the best teacher...but it gives the test first...and the lesson afterwards.

"What this generation tolerates...the next will embrace"