I have an aluminum water pump that was kept as a backup from my 66 "K". The car was produced in December of 65. Part number is "C40E-8505-A" with a "5" underneath. It has a circle of dots with "63" stamped in the center (production year I assume). It also has an 8 vein impeller.
A buddy had an extra one for sale...so I changed it out and had it rebuilt...
I was not the original owner...however, because of the low mileage at the time, I believe it was the original pump...can anyone give any background history/opinion.