The forged internal package offers 86.5 and 87mm options. Stock bore is 86, is the 86.5 fine or does it require a bore and hone? I was already going to get the block honed/hot tanked/resurfaced as well as the head. Another small question, I replaced a rocker arm and everything worked out but oil has been leaking very slowly into the spark plug wells. I used an OEM gasket, no RTV, and torqued to spec according to the FSM. Any ideas? The surface looks a little scored but i believe it was like that when i pulled the cover and it didnt have a previous leak. Can i sand this to smooth it or should i use a bit of rtv knowing it isnt recommended but i dont want to have to resurface this as well.
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