340 lifter bores bushed or not ?? Solid Roller cam

mini said
That's odd the 4723 are the entry level solid roller Morel. From what they offer today anyways

There was a 53 version. Looks like the retro fit hyd..but they're solid. Herbert sold them for years...then the part number changed.
I have the package they came in. I'll have to see the exact number, not that it matters now.