When you guys are talking big bore it is a lot of extra cutting..like almost 1/8 of an inch coming out..whereas a normal cut is a 32nd or under.
Wait till you get into real big bore, there is one cylinder that I bore on the lathe, that get 1/2 inch taken out..over 12mm
So I rough them out to within a few thou, and then the automotive machine shop hones them..
Your doing 883 to 1200? (0.496" overbore)
Usually, I'm in the 2~12mm range for overbores
Biggest one I've done is a CJ250 out to 391cc, 14mm overbore (from 56mm to 70mm)
PJ