Abstract: A direct acting valve lifter reciprocable in a bore has a pivoting foot for following a three dimensional cam for use with a variable valve lift mechanism of the type having an axially movable camshaft with tapered lobes used to vary valve lift. A rotatable shim on the foot rides on a lubricant film to provide a low friction cam follower. The pivoting foot has a cylindrical convex bearing surface which rolls on a concave cylindrical bearing surface carried by a follower retainer. The bearing surfaces have relative radii of curvature of 2:1 to achieve cardanic rolling motion. A tooth on the foot cooperates with a recess in the retainer to prevent sliding between the cylindrical surfaces.