GleasmJA Posted February 20, 2006 Report Posted February 20, 2006 I have my head off to have some boonman modifications done.... While in there i noticed that my piston says .50MM. Does this mean that it is half a MM over stock, or 50 over?? I think the wordding is getting me messed up here... thanks. Quote
fast500#12 Posted February 21, 2006 Report Posted February 21, 2006 .50mm =.20 bore making your bore 64.5mm Quote
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