Retainers and Locks

1270 or 1272 would be what I'm looking for, but thanks for the lead! That lets me know what to look for when I get back to the retainer dimension charts, I'll find the lowest price chromoly available (which I am sure is what Hughes number is originally purchased as, they're good at that on their valve springs that come in a PSI box!) and share the make and P/N back in a couple of days, if not sooner.