Hot Cams Steel Intake Valves are forged from a single blank with improved grain flow to enhance the mechanical characteristics of the valve without welding. An induction hardened valve stem tip and precision machined valve head and seat surfaces enhance durability and performance. Special PVD and CVD processes leave a (Black Nitride) BrN coating that provides high micro-hardness and low friction surfaces for reduced heat generation and carbon build-up. These features all contribute to a valve that endures the harshest racing conditions, while being compatible with O.E.M. components. Forged from a single blank, grain flow is improved to enhance the mechanical characteristics of the valve without having to resort to welding. Compatible with O.E.M. components. Induction hardened valve stem tip. Precision machined valve head and seat surfaces.