DisassemblyInspect CrankMachine WorkBalanceAssemblyOptions: True and Weld: True crank to OEM specifications or better.  Weld pin to ensure crank halves stay…

Honda OEM Head Assembly for Honda CRF450R.  NOTE: Select model year and optional head gasket and header studs. OPTIONAL: Performance porting service…

Each CRF's Only head is professionally assembled with Kibblewhite stainless steel valves.  Valves seats are cut and a proprietary port…

This CRF's Only head is professionally assembled with TRX stainless steel valves.  Valves seats are cut and profiled for increased…

Price is per valve guide and includes removal of the current valve guide and installation of our high performance copper-nickel…

Price is per valve seat and includes removal of the current valve seat material and installation of the MoldStar-90 valve…

CRF's Only CNC Performance Valve Job for your Honda CRF450R, CRF450X, CRF250R, CRF250X, CRF150R or any Honda head. We…

CRF's Only CNC Performance Valve Job for your Honda CRF450R, CRF450X, CRF250R, CRF250X, CRF150R or any Honda head. We…

CRF's Only CNC Performance Valve Job for your Honda CRF450R, CRF450X, CRF250R, CRF250X,  or CRF150R or any Honda head.…

CRF's Only CNC Performance Valve Job for your Honda CRF450R, CRF450X, CRF250R, CRF250X with Del West Titanium Valves and…

Performance Porting Head Service Unleash significant horsepower with our Performance Head Porting Service.  This is a race proven head…

CRF's Only Race Series Head Service Complete valve job …

CRF's Only Pro Race Series Head Service Performance porting …

Motorsport race teams around the world have discovered the secret of the ISF (Isotropic Super Finish) Process to keep their…