Black Diamond™ engine valve kit - 70-83 Sportster

All valves reinforced by a special process to a depth of .002” and a surface coating of .0002”.
This process improves anti-wear properties, reduces friction and provides resistance to corrosion and deterioration
Compatible with leaded and unleaded fuels
Manufactured in the USA
The kit includes:
• 2x Black Diamond™ intake valves
• 2x Black Diamond™ exhaust valves



Specifications


Brand
KIBBLEWHITE


Supplier reference
20-22300


Valve seat angle
Intake 23°, Exhaust 29°


Valve seat angle
Intake 23°, Exhaust 29°


Application
Exhaust, Intake


Head diameter
Intake 1.935", exhaust 1.570"


Cylinder head diameter
Inlet 1.935", Exhaust 1.570"


Stem diameter
Intake 0.3090", exhaust 0.3384"


Stem diameter
Intake 0.3090", exhaust 0.3384"


Length
Intake 3.620", Exhaust 3.512"


Length
Intake 3.620", Exhaust 3.512"


Material
Stainless Steel


Size
Standard


Measurements/Size
Standard


Model
Black Diamond™


Product name
Valve kit(s)


Units
Kit