So here is what I discovered. Federal mogul bearings come with a small chamfer on the bearings. You can get them in as is and the motor will spin, but they are really too close as after a couple of rotations, you can see a little distortion on the edges of the bearing. The sealednpower bearings do not have a chamfer and absolutely hit the crank filet radius, distorted the bearing, and locked the motor. The bearings I got from egge were gm bearings but apparently from a couple of different sets. There is no question that the bearings need to be cut down a little bit. We used a standard lathe tool and cut slowly until we got to the desired size. Chamfered with same tool just higher. Touched up the edges with some fine abrasive paper, polished with even finer paper. The tool needs to go slow or else it may chatter and make the edges a little rougher. The sealed power and federal mogul bearings were softer and easier to machine, the steel in the gm bearings was noticeably harder and we had to be more careful machining them
