I actually wanted to start with one anyways, as it seems more roller lifter friendly.
Though I would think someone offers a roller lifter, that’ll work in a 59 deg r block? Though they don’t recommend it, it seems.
If you aren't going to bush the lifter bores, make sure you tube the passenger gallery and block the oil off to the drivers side. If you are doing pushrods oiling, you can still do it, you just need to drill a .0625 hole in the tube for each lifter on the passenger side and restrict the oil to the drivers side with about a .187 or so hole and you'll be pooping in the tall cotton.
