I took a old lifter to the bench grinder and rounded it.That seemed to work ok but yes it's still tight with a new lifter.I thought a brake hone may give enough clearance but not sure if that's the right way to go about it.
Unless the entire lifter bore is tight, I’d just go in there with a paper roll and polish down the tube. Once you get that handled then you can make a few passes down the bores with the hone. If you try and hone the tube out it will make the lifter bores egg shaped and tapered.
