bro.. the worst part overhaulin honda because of overheating engine u must get ur block down too.. otherwise the problem will be coming back...

u need to skim the block too... when u skim the block.. u need to skim ur piston too...otherwise piston will be came out from the block hitting ur engine head..
reason why..?
- most of honda use aluminium block.. same material with head.. can 'warp'.. or mostly use term for this disease.. is 'bengkok' ....cos other car maker normally use cast iron...

my 20cent... u may refer to pro person for other opinion