I have a new BZ1 block that I haven't installed a cast iron sleeve in yet. It's still standard bore size and my thoughts are that I could fit a larger piston to it if I just had the bore Plated instead. Anyone with experience in doing this? I also wonder how big of a bore I could go with when plating, ( head bolt hole to cylinder minimum thickness?) It seems that I could at least bore to the OD of the sleeve I had planned on using.