Kibblewhite KPM-20-22700 Black Diamond Stainless Valve Kit for Harley-Davidson 883cc Sportster 86-03

All KPMI® Black Diamond™ Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface buildup 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.

Kit Includes:
• A Full Set of S.S. Black Diamond™ Valves, Stock Head Dia. 

Specs
Type: Intake/ Exhaust
Material: Black Diamond™ Stainless
Coating: Black Nitroneg
Quantity:
 Intake - 2
 Exhaust - 2
Intake Head Diameter: 40.26mm / 1.585"
Intake Stem Diameter: 7.9mm / 0.3100"
Intake Tulip: 23º
Intake Overall Length: 4.550"
Exhaust Head Diameter: 34.29mm / 1.350"
Exhaust Stem Diameter: 7.9mm / 0.3095"
Exhaust Tulip: 29º
Exhaust Overall Length: 4.640"
Remarks: Standard