My Dart Swinger Project!

I think j par was suggesting "oil through the pushrods" to your question of how to oil LA heads on a Magnum block.

LA heads oil through the block. Up to the rocker arm shaft.
I read Jpars post as a question and what is needed is a rocker arm that oils through the pushrods for an LA engine. Right now off hand I can’t think of one.. sorry, tired tonight.