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2004 CRF450 OEM shim sizes?

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I am re-building a 2004 CRF450 after a friend blew it up. The original setup was a JE HCP and RHC. Bad fuel and detonation cracked the piston. So anyway he is replacing the piston with a OEM Wisco and OEM cam profile. Does anyone know close to what OEM intake and exhaust shim thickness are? I know they vary slightly from bike to but but looking to get close to OEM ball park as the RHC used thicker shims.



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