Re: parts for a 64-65 50hp west bend
You have a West Bend, so you are on the right forum. However you might want to prowl around a bit on the Chrysler / Force forum, since that is who made your motor. Lots of good stuff to learn over there. (Chrysler bought out West Bend, then it later became Force)
A few parts such as impellers are available here at iboats.