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COVID-19 Update: CRF's Only is open and shipping. Expect delays from CRF's Only normal shipping time frames. Orders placed after 10am PT will be processed the next day. Store Pickup has been suspended.


  • Brand:CRF's Only
  • Model:CO450XHKW

Price : $787.17 $747.81

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

Quantity:
CRF450X - OEM Head w/ Kibblewhite Valves & Springs

Each CRF's Only head is professionally assembled with Kibblewhite stainless steel valves.  Valves seats are cut and a proprietary port to valve seat profiling performed for increased performance using a state-of-the-art NEWEN CNC machine.  This same NEWEN technology is used by top race teams in all of motorsports such as F-1, NASCAR, NHRA etc.  Don't settle for less when the best is so affordable.

  • New OEM CRF450X head
  • Kibblewhite Stainless Steel Intake valves
  • Kibblewhite Stainless Steel Exhaust valves
  • Kibblewhite seals and spring kit
  • New OEM valve cotters
  • Valves professionally installed
  • Ready to bolt on and ride

OPTIONAL: Performance porting service for even more performance from this head.

NOTE: CRF450X head will have the emissions port and will require a block off kit or the OEM emissions equipment.