Lobes are polished at the nose. The front journal actually had a small portion of the journal left at standard size so it would fit the timing gear. That step would have been hard to grind. The engine was probably rebuilt 10-20 years ago so they may have still reconditioned cams back then. No worries though, I have a new cam and cam bearings waiting to go into my block as soon as the machine shop gets done with it.