Kibblewhite Precision 20-21012 Nitrided Intake Valve - Standard

One-piece stainless-steel, stellite-tipped valves impregnated by a special nitrided process with .002 depth and .0002 surface buildup to improve wear properties and reduce friction. This process provides resistance to corrosion; wears superior to hard chromium and electrolysis nickel-plating. Lightweight with profiles that provide excellent flow characteristics. Compatible with leaded and unleaded fuels and can be run in cast iron- and bronze-type guides at close tolerances for maximum oil control and heat dissipation. Made in the USA One-piece stainless-steel, stellite-tipped valves impregnated by a special nitrided process with .002 depth and .0002 surface buildup to improve wear properties and reduce friction. This process provides resistance to corrosion; wears superior to hard chromium and electrolysis nickel-plating. Lightweight with profiles that provide excellent flow characteristics. Compatible with leaded and unleaded fuels and can be run in cast iron- and bronze-type guides at close tolerances for maximum oil control and heat dissipation. Made in the USA Head Diameter: 39.90mm / 1.571in. Stem Diameter: 6.0mm / 0.2347in. Tulip: 10deg. Overall Length: 4.015in. Remarks / Std.