Re: 1955 Oil Pumps

Posted by HH56 On 2017/12/17 19:21:52

The PI pump is the heavy bottom plate and I have one in my car too. For a lot of years that was the only option that seemed to get any press. Think it was devised by Harold Gibson of PI but longtime PI members would have to confirm. I think it was Bob Aller and maybe others who did the upper bushing conversion but those were not promoted or much known about in this neck of the woods. Those two and the factory relief valve kit were the only options I am aware of until Craig and Eric came out with the Olds conversion a few years ago.