Quote: I believe you... some have run the stamped rockers at high lifts. I also know quite a few folks have punched holes in them with the pushrod at much lower lifts.
I speared new MP "6-pack" rockers twice on my 440 back in the day running a .509 cam and the recommended springs. You could not get me to run a .500+ cam again with stamped rockers for love or money with a big block.
The new Magnum small blocks seem to have no issues however, I know lots of folks running over 500 lift with them.
funny you mention that because if i DID still run the stamped rockers, my engine wouldnt have eaten a bunch of needle pieces and destroyed itself. They did work fine.
