BBB pump whats the difference between. AC & Non AC same Ebay seller. AC $36.35 Non AC. $51.51 both free shipping
This is a guess: To my knowledge, no difference between the two(A/C vs Non A/C). One is a short neck pump, the other is a longer neck that was used on later 455s that had a different pulley setup. Can you share part numbers or the links?
The shorter one ($51.51) is correct for 67-70 BBB. I don’t think it matters A/C vs Non A/C. http://www.buickperformanceclub.com/BuickWaterPumps.htm I hope this helps. It’s going come down to what pulleys you have currently. The pulley below is correct for a 1970 455.
