Originally Posted by EragonSuperH
My main concern is I have a lifter with a weird wear patter on the current cam, and I want the longevity of a roller cam. I know its probably not worth it, but personally the peace of mind is worth it to me. Also what do you mean moving the torque peak up? wouldn't the smaller duration move the torque peak down?
It is imperative that you break the cam in with something like Brad Penn, Joe Gibbs Driven type of oils and would continue with one of these higher Zinc oils. I broke in a VW aircooled several years ago when Rotella T supposed to have high zinc. Well I did not know that within a year before they had dropped the Zinc level. Screwed up all the lifters. Check out the pics. Same Brand Mahle lifters but the one that was pitted on the right was broke in on lower level Zinc oil. The one with the swirl pattern VW's have rotators on their valves is normal. Came out of the engine that was built I think in 89? More zinc in the oil then.
But with a Roller you don't have to do this. I would still use a break in oil initially and probably go Mobil 1 or something post.