6311 - Full Mod G320RC Top End (Replacement for engine 6300) c-clip set

c-clip set

</p> <p>We have left the porting open on this top end

have more mid range power and rev higher

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The PROSTOCK engines produce more power than the race ports and are more economical

6311 - Full Mod G320RC Top End (Replacement for engine 6300) c-clip setPorting not shown in picture! Full mod G320RC top end. Can be installed onto a stock G320RC engine or is a replacement top end for full mod engine 6300. View engine description for modifications done to top end. https: oneillbrothers. com products 6300 7 7hp full mod zenoah g320rc 31 8cc engine?_pos=1&_sid=6be5a34a3&_ss=r Top end comes complete with: Ported cylinder Modified piston piston ring Cylinder gasket Transfer port skavenging covers Wrist pin