Trick Flow heads on 5.9 Magnum block

Toluene56 said

I called comp cams. The 1622-16 rockers we're designed to be pushrod OR shaft oiled. And in case anyone wanted to know the 8043-16 solid roller lifters that fit magnum blocks also allow for pushrod oiling.

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That's good to know, if I upgrade my rockers to those (currently using stock stamped-steel) I could remove the external oiling stuff.

I'd be curious to see just how much oil flows through those from the pushrods though.