Don't know if the '06 exhaust guides will fit into the earlier model cylinder heads. The new oil seals can most likely be used with the earlier cylinder heads since they fit on the guides.
The exhaust valves were changed in metallurgy for the '04. Warchild documented a small 'pip' that was added to the face of the valve. I would imagine that valve is now universal for all model years.
One would assume that the '06 components would be used in any 'tick' repair today.
The exhaust valves were changed in metallurgy for the '04. Warchild documented a small 'pip' that was added to the face of the valve. I would imagine that valve is now universal for all model years.
One would assume that the '06 components would be used in any 'tick' repair today.