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Ships within 48 hours · Estimated delivery Aug 3 - Aug 8
We're seeing by just swapping to the TR/OBR billet piston port case more power</span><span class="text_exposed_show"> 
powder coating etc
OBR balanced crankshaft for 30
<p>This is a brand new race ported 30
6337 - 46cc / 47cc FAT BOY Reed Crankcase - RC Use We're seeing by just swapping<p>Complete OBR reed crankcase for the 46cc and 47cc engines with vented billet clutch housing. If you are upgrading from one of our piston port engines we highly recommend that you ship us your engine to be converted. To see the full potential of this case additional porting is required. Cases come with complete with carbon fiber reed petals, nachi bearings, seals, hardware and a reed cage gaskets. Case halves need to be sealed with a
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