'89 roller-cam LA 360 w/Magnum heads - new roller lifters not pumping up

AJ/FormS said
When I asked about, is the oil getting out of the lifter elsewhere, I was thinking out the bottom and drizzling all over the roller-wheel or camshaft.I was thinking more along the lines that the bottom of the lifter bores were damaged, but since it doesn't matter where you put them, and now we see that pretty much any new lifter does the same, that rules this idea out. And by now you have probably ruled out oversize lifter-bores.But the one sure thing in all this is that many of them are putting out a lot of oil. Maybe they are the faulty ones. I've never had a roller cam engine open, so I'm no help at all.

Nope - none of the lifter bores are leaking out onto the camshaft; it's a nice snug fit.

Only those 8 from the engine squirt oil like no tomorrow when the pump is spun. I'm beginning to wonder whether that's proper operation or not, and I'm tempted to open them up and see if some sort of check valve is missing in them. It's obvious that the oil pump (and thus, drill) is under slightly more strain with Sirland67's lifters than in any combo that has those 8 installed.

That's not that I'm excluding the other lifters that won't pump up for being troublesome in their own right. There are two problems here - lifters that won't pump up, and lifters that won't pass oil.

thesiren74 said
Try rotating the engine by hand while spining the drill?

Not sure what this would achieve. I'm not that well up on the oiling system of the SBM, but doesn't the passenger's side oil gallery and tappets receive oil directly from the gallery without any obstruction prior?

-Kurt