Manufactured from premium steel material Manufactured to the highest quality standards and specifications, exceeding OEM standards. Forged ONE Piece construction Just like our pistons, forged valves offer higher strength and fatigue properties due to the 1-piece construction. Chromium Nitride Coated, offers superb surface hardness and wear resistance. Wiseco Part#: VES036 Product Type: Valves Specifications: Material Type: Steel Valve Position: Exhaust Item Contents: Item contents are not available for this item.