Wow . I was in a pretty good mood when i left the house. I went to napa figuring they would know a little about sbc water pumps and possibly have a universal fan for a 1978 c10 and made the mistake of telling her that the engine was in a totally different car. From that point on she proceeded to tell me what was wrong with my car that I've only been driving for 6 years with no problems. She was VERY, VERY, VERY condescending and rude. Then, I think it was the manager, came over and didn't know anything at all. They both proceeded to tell me that it could be a reverse flow meanwhile I told her that it was not a serpentine. She then told me, "If you are going to do something like this then you should know what you have." meanwhile I told her what I had! It was a terrible experience and I will never go back there and don't recommend anyone else to.