Rebuilding the engine must include close attention to the cylinder head. The valve guides, valves, valve-springs, seats & retainers should, ideally be replaced. Other areas of possible concern is the Cam
-drive chain, tensioners and guides, which once again in an ideal world ought to be replaced. Whatever approach you take, this component and perhaps some of those listed below may be of interest:
Add as many components as you wish to the same shopping cart, new valve-stem seals 12209GB4682 12209KE8005 & valve-springs 14751MW3671 for example, and still only pay the same single fixed price shipping cost. Pro-workshop gasket sealant 08C70K0234M - easy to use with excellent results. This component may have other, sometimes unrelated applications within the Honda model range, so please always check by the part-number rather than the description prior to ordering.