You can buy oversized pistons/rings from Honda with 0.25, 0.5, 0.75 and 1.0mm for overbores. HL sells a BBK that bumps it to 466cc's I beleive.
433 stock........ .40 over does not mean 40cc over. it means .400 of an inch if im not mistaking. the highlifter big bore kit is a 3mm over kit that makes it 466cc [/quote]its about a 460cc engine now right? 433 stock so what is it approximately?