BLACK DIAMOND VALVES FOR BIG TWIN & SPORTSTER

All Precision Machining, Inc. one piece stainless steel valves are impregnated by a special German Process (Nitroneg) .002" deep & .0002" surface build up to improve wear properties and reduce friction. This process provides resistance to corrosion and wear superior to that developed by hard chromium and electroless nickel plating. These valves are light, and the profiles provide excellent flow characteristics and are stellite tipped. Sold each.
Kibblewhite
Exhaust type Valve
Head Diameter: Std 1.475"
Stem Diameter: .3095"
Overall Length: Std 4.560"
Fits Evolution Sportster 1987 1100cc only & Evolution Sportster 1988/2003 1200cc only
Replaces HD# 18024-87
By: KIBBLEWHITE PRECISION MACHINE