Kibblewhite Precision Machining Black Diamond Stainless Steel Exhaust Valve – STD – 1936-47 Harley-Davidson Knucklehead

All KPMI Black Diamond‚ Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface build up of .0002. This Black Diamond‚ process improves wear properties, reduces friction, and provides resistance to corrosion and wear that is superior to chrome and nickel electrolysis plating. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench. Black Diamond‚ Valves are lightweight, strong, one piece forgings with profiles that provide excellent flow characteristics.

• Coating Black Nitroneg
• Head Diameter 44.45mm / 1.750″
• Material Black Diamond Stainless
• Overall Length 3.670″
• Quantity Pkg. of 1
• Remarks Standard
• Stem Diameter 9.6mm / 0.3760″
• Tulip 27 degrees
• Type Exhaust

See Additional Information below for fitment.