M-72 oil pump

12many said
Whatever happened to rebuilding/refreshing parts like this? If you have an old pump it might be a good time (if you haven’t already or considered) to crack it open and inspect/check clearances and possibly refresh/modify as needed. Of course in a bolt-on ootb world that would require having a FSM and a little bit of ability/desire.
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That's what I almost said. Are kits even available? I modify stock used slant 6 oil pumps by cleaning them up, polishing the rotors and adding the Mopar big block/slant 6 high pressure spring. Then I wrap them in plastic and stick them on the shelf. I have several like that and several more cores to do.