Trick Flow heads on 5.9 Magnum block

So, how does this work. Can I drill the Magnum block for the thru the head shaft oiling? Or do i have to spend $8-900 for special rockers?
No, use Comp Pro Magnum rockers and hollow pushrods. I just discovered this fact here on FABO from another member In Reno IIRC, doing just this very thing. The rockers are set up to handle this.

Here at a Summit racing is the page. Just scroll down and open up the questions area to see all the questions to find your answer.

COMP Cams Pro Magnum Shaft Mount Roller Rocker Arms 1622-16

https://www.forabodiesonly.com/mopar/threads/toluene-dart-73-swinger.87033/page-12#post-1972530090