I have several water pump pulleys for BB engines. The long nose is listed on 440source as being for all big blocks, non AC with or without PS. Their part number is 132-1002 and the offset is 2 3/8" to the center of the belt goove. I can't find a factory part# on it. It's 6 7/8" diameter. The smaller pulleys with 'BB' marked on it is a 2951092 and 440 source lists it as being for several differnt BB's from 69-72 and in various combinations of accessories. The orange pulley is listed for a 73 440 w/ac and is part #3698907. I also have a double groove (not in pic) listed as for a 73 440 w/ac and w/CEP, part# 3698917. Pulleys are 15 each and are in VG condition. Shipping is actual. I can make a deal on muliple purchase. Thanks!