Stainless steel inlet valve and spring conversion kit - KX250F 17

Stainless steel conversion kit with everything needed to switch to long-lasting Black Diamond intake valves
Extends the service life of the valve train and intake components up to 4 times longer than OEM titanium parts.
Includes single-piece forged stainless steel inlet valves, heat-treated chrome-silicon valve springs, ultralight titanium retainers, and hardened steel bases
Components are created using Finite Element Analysis (F.E.A.) software, as well as proprietary cam analysis and spring design programmes
Designed and developed specifically for each application
Manufactured in the USA
The kit includes:
2x inlet valves
2x base washers
2x valve springs
2x Titanium retainers



Specifications


Brand
KIBBLEWHITE


Supplier reference
40-41450


Valve seat height
1.315"


Valve seat height
1,315"


Valve seat angle
20°


Valve seat angle
20°


Application
Intake


Head diameter
31,00 mm


Head diameter
1,220"


Cylinder head diameter
1,220"


Stem diameter
4,50 mm


Stem diameter
0.1764"


Stem diameter
0,1764"


Spring lift
0,415"


Spring lift
0,415"


Length
3,460"


Length
3,460"


Material
White Diamond® acero inoxidable


Gasket material
Titanium


Product name
Valve(s) and spring(s) kit


Seat spring pressure
65 lb


Open spring pressure
181 lb


Type
Conversion


Units
Kit