There are MANY dynamics in cam/lifter interface design. All cam lobes have a slight taper to the side, so the lifters will spin as they go up an down. The original 440 6bbl cam was designated "Low Taper" by Chrysler, so it would stand up to the higher valve spring pressures used in that engine. Cam specs were no different, best I could find, but that "low taper" designation was the difference.
We didn't realize it until the later 1980s, but few of the earlier engine designs had valve lifters which were at an exact 90 degrees to the camshaft itself. In an effort to minimize engine height (best I can figure), the lifters were laid over a little more, plus the pushrods a little too, sometimes. The Chrysler LA "R" block took those additional "lay over" degrees out and made the lifters at 90 degrees to the camshaft, which also meant it had a special cam for that reason.
Lifters spin in their bores, EXCEPT roller lifters. Pushrods can spin somewhat. As the rocker arm end "wipes across" the top of the valve stem, pushing it down or letting it return to closed in the process, a side load is placed on the valve stem, which is controlled by the valve guide. LOTS of friction interfaces!
One of the more recent "advances" is the porosity of the lifter "bottom" so it can supply oil to the cam lobes, directly. Not sure if it works as well as advocated.
As you might have noticed, the recommendations for cam lubes have changed over the years. The newer stuff should be much better than what was used/recommended 60 years prior, I suspect. Still, can't hurt to use as much as you desire, I suspect.
CBODY67