waterpump pulley help

Does anyone know how many different waterpump pulleys are used on 440s? I have a 440 out of a 1976 New Yorker, and do not have the original waterpump pulley. The Harmonic balancer is unlike most I have seen it is very thick and tapers slightly the pulley thatis on it has 4 grooves (I only need 1 groove). For the waterpump I only need one groove but I need to find out if there were a lot different sizes used, and what diameter and the depth I should be looking for. Also if anyone knows what other year motors might have a suitable replacement, as always Any help is appreciated.