1991 - 1992 HARLEY-DAVIDSON DYNA STREET BOB/SPECIAL

Black diamond exhaust valve for 1984-1999 evo engines | KIBBLEWHITE

Product description

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.