One-piece stainless-steel, stellite-tipped valve is fortified by a special nitrided process with .002'' depth and .0002'' surface buildup to improve wear properties and reduce frictionThis process provides resistance to corrosion wears superior to hard chromium and electrolysis nickel-platingLightweight with profiles that provide excellent flow characteristicsCompatible 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 dissipationMade in the USA