Yes you are incorrect. The lifter is flat and the lifter bore is offset from the cam lobe so that as the lobe comes around it rotates the lifter. Something like the guy on the Ed Sullivan show that spun the plates over head on the end of a stick. There is a good illustration in the Shop Service Manual for Trucks.
I may have misled the group in an earlier post along the same lines, but Jerry I believe corrected me.
Denny Graham
Sandwich, IL
