The water pump is for a 1960 235 car engine that was swapped into a 1953 Chevy 1 ton. I wanted a shorter waterpump so I was advised to get the adapter plate so I could use the earlier water pumps in the stock position. I bought a 5/8" pump in a moment of auction fever and now I still need:
a 5/8" generator pulley,harmonic balancer to match the smaller pulley,a fanblade(2 1/4 boltcircle,5/8" center hole) and Pre 68 Dave's adaptor!
That short shaft waterpump or electric fan or leaving the hacked radiator shell w/core forward are all looking pretty good to me now! So if anyone has any parts or shortcuts please let me know. Regards Peter