Discrepancies in information on LA and Magnum series oil gallery plugs

I would put the plugs in and use a standard thrust plate ( like your 318 plate.) Pick up a factory bolt with the hole in it for oiling. All bases covered. You could even add the little drip plate to have oil drip on the chain. It seems that Chrysler wanted a little drip in that area. If the plugs help divert oil up toward the lifters, that a good thing.