Engine valve kit - COMP 86-03 EVO/883

The kits include a set of KPMI® valve springs or equivalent, a complete set of standard size Black Diamond™ stainless steel valves and black nitride coated components, heat-treated steel valve retainers and stem seals (where applicable) for the engine applications specified.
Black Diamond™ valves are made from single-piece forged stainless steel and reinforced using a special German process to improve wear resistance and reduce friction.
White Diamond® valves are CNC machined from a single piece of EV8 stainless steel or Inconel-751 and chrome-plated 360° for a hard finish.
Compatible with leaded and unleaded fuels
Sold as a complete kit for an engine
Manufactured in the USA
The kit includes:
• 2x Intake valves
• 2x Exhaust valves
• 4x Intake and exhaust retainers
• 4x Sets of inlet and exhaust seals
• 4x Intake and exhaust valve springs
• 4x Intake and exhaust base washers
• 4x Red Vinton® intake and exhaust seals



Specifications


Brand
KIBBLEWHITE


Supplier reference
20-22750


Valve seat height
1.810"


Valve seat height
1,810"


Valve seat angle
Intake 23°, Exhaust 29°


Valve seat angle
Intake 23°, Exhaust 29°


Application
Intake, Exhaust


Head diameter
Intake 40.26 mm, Exhaust 34.29 mm


Head diameter
Intake 1.585", Exhaust 1.350"


Cylinder head diameter
Intake 1.585", Exhaust 1.350"


Stem diameter
Intake 7,90 mm, Exhaust 7,90 mm


Stem diameter
Intake 0.3100", Exhaust 0.3095"


Stem diameter
Intake 0.3100", Exhaust 0.3095"


Spring lift
0,600"


Spring lift
0,600"


Length
Intake 4.550", Exhaust 4.640"


Length
Intake 4.550", Exhaust 4.640"


Material
Black Diamond™ stainless steel


Gasket material
H.T. Steel


Seat spring pressure
163 lb


Open spring pressure
361 lb


Units
Kit