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CRF250R'04-07 Complete Top End Rebuild Kit w/Stainless Steel Valve Conversion

Purchase CRF250R'04-07 Complete Top End Rebuild Kit w/Stainless Steel Valve Conversion

CRF250R'04-07 Complete Top End Rebuild Kit w/Stainless Steel Valve Conversion

SKU: CO-33700-K01-10001 Brand: CRF's Only
$1,567.49 $1,649.99
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Description

CRF250R'04-07 Complete Top End Rebuild Kit w/Stainless Steel Valve Conversion — Complete CRF250R 2004-2007 top-end kit includes assembled Cylinder Works head with Kibblewhite stainless valves, piston kit, cylinder and gaskets.

Why This Product

A performance or service-focused engine component for the CRF250R, suited to builds where the stock part is worn or the engine is being upgraded for stronger performance.

Build note: Cylinder heads are assembled upon order. The current product information states to allow approximately 4-5 business days to ship.

Product Details

Does your bike feel a little sluggish? Does it feel like it needs ANOTHER valve adjustment? Is your leg getting tired from all that kicking? 

CRF's Only has you covered with our one-click COMPLETE TOP END REBUILD KIT!

Our pre-built top end kit takes out all the guess work of searching for parts,fitment, and availability. We add the power,reliability, and peace of mind that all bike owners want out of their machine!


THE KIT INCLUDES THE FOLLOWING BELOW

- Fully Assembled Cylinder Works Race head with Kibblewhite Stainless Steel Valves
- Kibblewhite Complete Piston Kit w/ Cylinder head Gasket, Base Gaket, and Cam Chain Tensioner Gasker
- Cylinder Works 78.00 mm Standard Bore Cylinder



  • Matched cam cap(s)
  • C630 valve seats and guides
  • Performance profiling of the valve seats
  • Shortened valve guides
  • Blended port bowls
  • Un-shrouded combustion chamber
  • 2007 port shapes
  • Kibblewhite stainless steel valves
  • Kibblewhite high performance springs kit
  • Kibblewhite Titanium retainers
  • Kibblewhite Viton seals
  • Honda cotters
  • Professional valve installation
  • Nickel silicon carbide plated Cylinder for longer life

CRF's Only has been building and modifying these Engines for over 20 years! Give us a call or shoot us an email with any questions you may have!

CRF's Only
909-758-8034


Cylinder Heads are assembled upon order, please allow 4-5 business days to ship 



Fitment

Honda CRF250R 2004-2007. Verify exact model and year before ordering.

Kit Highlights

the product information includes a fully assembled Cylinder Works race head with Kibblewhite stainless valves, Kibblewhite piston kit, standard-bore Cylinder Works cylinder, gaskets and related top-end components.

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Perfect ( Verified Buyer )
5 out of 5 stars.
Anthony (Florida) | September 25th, 2025
If you have any doubts about buying this don’t! The quality is exceptional! It took all the headaches out of rebuilding my engine on my 07 crf250r.
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Fits the items below

Click/tap each year button to see the bikes that fit:

  •   2004 Honda CRF250R
  •   2005 Honda CRF250R
  •   2006 Honda CRF250R
  •   2007 Honda CRF250R