Street & Race-Proven profiles designed and manufactured for maximum performance and reliability. We start with a select Chilled Cast Iron Billet. Each camshaft is then machined and ground completely on CNC equipment, delivering exacting tolerances and repeatability. Select the appropriate cam for your application and install using new Cam Lifters. Each cam is supplied with a tube of assembly lube. Requires purchase of Cam Lifters, Gear and Bolts. ZDDP or ZDTP should be either in the oil that you chose or added to the oil you chose when running any flat tappet camshaft.