That flathead is probably the closest thing anyone here has to a /6 like is the subject of the question.
I know that there are several components to the question, and one I was "going after" was on the subject of specific category of cam used. Many seem to key on what's current/ roller cams vs flat tappet.yes there are other considerations that will play into the "right" answer for sure. But I'm looking at a brand new current production flat tappet cams vs in my case a reground, well used original one. Also does solid lifter like my /6 runs vs a hydraulic cam play into the answer?
Does anyone know how much zinc is in current "SP" oils? It seems that is all I can find.
Is (commonly available) diesel oil any better for flat tappet cams any more?