I’ve sold several sets of BAM’s to people with unbushed stock blocks.
One of them sent me a little video of him running the priming tool with the manifold off.
He was worried about the flow of oil coming out around the lifter wheel from the EDM oiling to the axle.
It was way less than what I’d seen from similar videos using other lifters.
In the end, the hot oil pressure is fine, and that motor completed drag week this year without issue.
That's good to know, since my "next build" block doesn't have bushed lifter bores like the current one does that has BAM needle-bearing rollers in it.
I like the BAM lifter features. They measured about .0005" wider than a couple of different COMP lifters I checked, so they fit the bores a little more snuggly, too.
