2005 Cylinder head on a 2001

Morning,

I have read multiple forms and looked at parts breakdown and I believe its possible to use a 2005 cylinder head on 2001. Couple of other things that need replaced as well would be the piston and valves. Question has anyone done this? and thoughts on anything else that may need replaced as well like the camshaft assembly?

This forum is about the WR250R, a bike that was first produced in 2008. What you are probably talking about is the WR250F, a bike that shares virtually nothing with the WRR. The best forum for your question is probably Thumpertalk.