[rotorwrench]

There is a fellow that rebuilds pumps with his own design impeller (George "Skip" Haney) and he is the only one I know of that flowed the different pumps to see how his design impeller compared to the original. A person can contact him for the info but there may be a thread on the subject on this board. Finding it might take a while though.


There may be differences between the different types of pumps as well. The early outlet pumps that were mounted on the head from 1932 through 1936 would likely be different that the 78 type pumps that came out in 1937 and ran through 1948. There are different pumps in the 8BA era for Ford cars, Mercury cars, and pickups, They al likely have a similar flow but they have distinctly different shapes & mountings.