Discrepancies in information on LA and Magnum series oil gallery plugs

I've torn down a bunch of 318s, 360s and a few 273s but simply wasn't paying attention to all of the differences.
This '68 318 has a 4 bolt thrust plate with no oil dripper. I don't recall ever seeing any LA engine that had those plugs in the oil gallery ends.
A friend is rebuilding his engine here, his first ever engine build. He put the plugs in his block on the advice of threads he read on this site and what he has read in books.