Cylinder Head Service Kit, 0.465″ Lift, Honda®, XR™ 650L, 1993-2022 VARIOUS APPLICATIONS # 30-33490


Available on back-order



  • GB500 89-90
  • XR500R 83-84
  • XL600R 83-87
  • XR600R 85-2000
  • XR650L 83-22

Available on back-order


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 0.465″ 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
Valve Lift 0.465″
Installed Height 1.210″
Seat Pressure 70#
Open Pressure 185#
@ Lift 0.400″
Valve Type Intake / Exhaust
Valve Material Black Diamond™ Stainless
Coating Black Nitroneg
Intake Head Diameter 36.00mm / 1.417″
Intake Stem Diameter 0.2590″
Intake Tulip 23º
Intake Overall Length 4.165″
Exhaust Head Diameter 31.00mm / 1.220″
Exhaust Stem Diameter 0.2585″
Exhaust Tulip 29º
Exhaust Overall Length 4.095″
Remarks Standard
Guide Type Intake / Exhaust
Guide Material C630 Bronze
Reference See Figure 1
Outside Dia.: (G) 0.4755″ / Std.
A 0.300″
B 0.375″
C 1.240″
D 1.410″
E 0.808″
F 0.2585″

Additional information

Weight 1.5 kg
Dimensions 25 × 25 × 8 cm


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