ive got a 1954 chevy 261 with the original pump i think. The problem is, is that when we got the pump, it didnt have a pulley, so we pulled one off of a random truck at the junk yard that looked similar.I think that its too small,and is causing cavitation which is causing my engine to overheat.I measured the pulley and it came out to be between 4.5 and 5 inches wide.heres some pics.tell me what you think.Do i need to find a different pulley?Is there a place where i can order just a pulley that is the right size? Thanks
http://i612.photobucket.com/albums/tt202/dantheman176/DSC04340.jpg
