Quote: the ball end of them was grinding off in the lifter cup. After looking at the roller lifter a little closer, I noticed the cup looked like it was too small for a 3/8" ball end. It was.
When I was checking my Indy pushrods in the lifters they didn't sit right. I coated the tip with a magic marker then fit it into the lifter and it showed a ring where it was only making contact with the edge of the cup. ???! So then I checked the ball and cup with radius gauges. The cups were 3/8" dia. but the "supposedly" 3/8" dia. pushrod tips were off. Indy has them back and I've ordered Smiths.
FWIW, Smiths pushrods come in .050" increments which is one thread of an adjuster screw.
