Kibblewhite Intake Valve - Big Twin 20-4171

Features: 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 U.S.A. Specifications: Length Imperial: 4.445" Stem Diameter Imperial: 0.3100" Head Diameter Imperial: 1.840" Model: Black Diamond™ Tulip Angle: 23° Application: Intake Material: Stainless Steel Product Name: Valve Riding Style: Street Units: Each