Quote Originally Posted by Navy7797 View Post
Another problem popped up, new water pump causing pulley to be out of line. The old pump was off just bit so I let that one go but the new one is off by 3/16 (too long at the pulley mounting plate) . Mounting my A/C pump ready brought this to my attention. My power steering lines up and so does the alt. Does anybody have spec's on a short water pump for SBC. Its either the pump or the billet alu. pulley. Thinking of pressing the flange on shaft a bit, but down the road that will cause troubles on the road if the pump fails. thoughts ?

The short water pumps were used on early engines with a pressed on balancer that was around 3/4" to an 1" thick and the crank snout was not drilled or tapped for a bolt. I used to drive them on with a hammer and a length of 2 by 4. Mixing billet with steel pulleys could be your problem. Can you take and post any pictures?