[Walt Fricke]

Torco (only assembly lube I have experience with, other than what cam grinders send with cams) will penetrate rocker shafts. I drip some into the lube holes, and on each side, as well as on the cam, then wiggle the rocker around. I do it as part of setting the lash. Wiggling seems to get the lube, thick though it is, in there. On the engine stand, of course, so I can have the side up. Eventually some Torco will ooze out and fall, but plenty is still left.

Doubtless other lubes behave about the same. I can't imagine ending up with bearings being dry when you finally fire it up.