[Alan Roehrich]

Yes, you can run DLC coated tool steel lifters on an 8620 steel core camshaft. I strongly suggest the high end finish that Comp Cams has recently introduced. I use and sell only Trend lifters. I suggest you ask your lifter supplier about motor oil, as certain DLC coatings do not always work with just any motor oil.

We use the Trend tool steel lifters (without DLC) with as much as 550# open pressure on 0.842" lifters. We do this on nitrided cast iron core cams, and we do not use the EDM oil hole.