early heads on roller LA?

You will have to find skinny pushrods the roller cam length (cut to fit), unless someone here says they wont work, I DNO, never tried.
They make some real nice roller cams that use the stock lifters.
LIfters are oiled from the galley, rockers are oiled from the shafts, so solid/hollow, it doesn't matter, I like hollow, they are lighter, and lighter is the key!

Keep them 308's, next set you build, they should be it. (best OEM Head)