If you are committed to a ground-up engine rebuild, then you may wish to give close attention to the oil-pump. It only takes one small component in the oil-pump assembly to fail and all that good (expensive!) engine work may all have been in vain.
Now that we have your attention, this is one of a number of components that will require careful examination to ensure that it is up to the task of supplying cooling, lubricating life blood (oil) to the hard working areas of the engine.
Other oil pump related components you may wish to check out below:
11210MW3670
11211MJ0000
15100MW3600
15100MW3A80
15151MJ0000
15153MJ0030
15154MJ0000
15311MJ0010
15312MJ0000
90487MB0000
90721MJ0010
Add as many components as you wish to the same shopping cart, new oil pan gasket 11398MW3600 & correct spec oil filter 15010MCEH51 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.