Cam bearings should be replaced with every rebuild - just like main and rod bearings. Use this set on engine blocks with removable tappet covers: 850, 997, 998, 1098, and Mini Cooper S. Has narrow bearing at the oil pump end. Quality aftermarket product. Note early 850s use only the front bearing from the set. This set is used on the 1300 Automatic, as the depth of the oil pump requires the use of the narrow bearing.