that basically was what i was hoping . that someone ,because of the inferior ones being sold, that there might be a 'second life' option for them. experienced a cam failure recently and after looking at an old original, noticed it is a much thicker mushroom than the new ones i purchased. not saying for sure that that was the problem but after purchasing a new cam and finding a nos set of lifters, havent experienced any problem. this nos stock was in old ford boxes btw.

I would think that modern NC equipment could be programmed to grind the face of a rotating lifter and the grinding wheel also move in a curve to put the crown on.  John M??  You have NC equipment, can it be done economically?  My old valve refacer can grind them flat, but not crowned.

John - "The Hoosier Hurricane"