Camshaft Lobes are machined and Parkerized. All Journals Polished. If Camshaft does not neet OEM specs, it is replaced with a new camshaft. Cam bearings are replaced with new OEM quality cam bearings. New timing chain, gears or belts installed. Bearing surfaces precision machined. New freeze plugs installed. Crankshafts reground, polished, and oil holes chamfered to rigid high specifications.