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 fits Ironhead Sportster 1958/1969
Head Diameter: Std 1.570"
Stem Diameter: .3384"
Overall Length: Std 3.510"
Replaces HD# 18080-58A & 18033-80
Exhaust type Valve fits Ironhead Sportster 1970/1985
Head Diameter: O.S. 1.570"
Stem Diameter: .3384"
Overall Length: Std 3.510"
Replaces HD# 18080-58R & 18033-80
By: KIBBLEWHITE PRECISION MACHINE