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READ BEFORE ORDERING: Orders placed after 10:00am PT on operational days will be processed the next day. Shippers and manufacturers are experiencing delays. Due to rapidly changing market conditions, advertised prices may be changed at any time without notice. Phone service has been suspended. Use our Contact Us page.

  • Brand:CRF's Only
  • Model:CO-250L-OEM

Price : $419.11 $398.15

Available Options:
Model Year:
Performance Porting Service:
Head Gasket:
Header Studs:

CRF250L - OEM Head w/ OEM Valves & Springs

CRF's Only Performance OEM Head with OEM valves and valve components. This head is BETTER than new as we perform our CNC performance valve seat and port blending for increased flow and velocity.  This in addition to recutting the valve seats for a perfect seal.


  • Performance CNC valve job (see below for details)
  • New OEM Intake valves
  • New OEM Exhaust valves 
  • New OEM valve springs, base washers, retainers, cotters
  • New OEM valves seals
  • Professional valve installation
  • Head gasket and header studs optional

CRF's Only performance valve seat and port blending service includes the following:

  • Professional valve seat cutting using state of the art NEWEN CNC valve seat cutting machine. This step is absolutely required for quality results and the durability of your valves and yet is often overlooked by inferior service shops.
  • For added performance we perform a proprietary CNC port to valve seat profiling for increased performance. Ask our competitors if this is included in their service.
  • Assemble head and valve components.

NOTE: Select our performance porting service for increased performance.  Photo for illustration purposes only.

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