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Cylinder Head Service Kit, 0.415" Lift, Kawasaki®, KX450F™, 2009-2015

Cylinder Head Service Kit, 0.415" Lift, Kawasaki®, KX450F™, 2009-2015


Regular price $418.65 USD
Regular price $418.65 USD Sale price $418.65 USD
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California Prop 65

KPMI® is proud to introduce full CYLINDER HEAD SERVICE KITS. These kits contain all items to completely refresh and upgrade cylinder heads for popular Dirt / MX and Side x Side models with KPMI’s top quality racing valvetrain components.


  • Save time money on your next cylinder head rebuild
  • One package, everything you need for factory recommended valvetrain service
  • Double your service life over OEM using KPMI® Valvetrain products
  • Kitted with value added savings

Kit Includes:

  • Dual Spring Titanium Retainer Spring Kit, Which Allows for 0.415" Valve Lift
  • Top End Gasket Kit by Cometic
  • KPMI® C630 Bronze Standard Valve Guides
  • KPMI® S.S. Black Diamond™ Valves, Stock Head Dia.

The product image may not be accurate on the page. Please refer to the description and specifications before purchasing.

Installation Instructions Click Here
Type Intake/ Exhaust
Retainer Material Titanium 
Intake Valve Lift 0.415"
Intake Installed Height 1.290"
Intake Seat Pressure 64#
Intake Open Pressure 169#
Intake @ Lift 0.415"
Exhaust Valve Lift 0.415"
Exhaust Installed Height 1.240"
Exhaust Seat Pressure 65#
Exhaust Open Pressure 170#
Exhaust @ Lift 0.415"
Valve Type  Intake/ Exhaust
Valve Material Black Diamond™ Stainless
Coating Black Nitroneg
Intake Head Diameter 35.99mm / 1.417"
Intake Stem Diameter 5.5mm/ 0.2155"
Intake Tulip 20º
Intake Overall Length 3.080"
Exhaust Head Diameter 31.00mm / 1.221"
Exhaust Stem Diameter 5.5mm/ 0.2150"
Exhaust Tulip 20º
Exhaust Overall Length 3.030"
Remarks Standard
Guide Type Intake / Exhaust
Guide Material C630 Bronze
Intake Reference See Figure 1
 Outside Dia.: (G) 0.4365" / Std.
A ---
B 0.380"
C 0.525"
D 0.760"
E 0.434"
F 0.2150"
Unique Identifier No. FR327789_01GAUSt
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