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Remove stock crank and install +2mm crank
Install all new gaskets and c-clips when engine is assembled
Adjust exhaust duration to our specs
Jetpro Slip On Exhaust Silencer Version
6226 - Race Ported 2 Bolt 27.2cc Upgrade Kit Remove stock crank and install<p>This is a brand new race ported Zenoah 27. 2cc big bore kit with 2mm stuffed crank. This kit comes with everything need to turn your motor into a beast. To start we machine the cylinder for the 2mm stroker and for a proper squish clearance with out stacking gaskets. This allows the motor to rev higher and still have a massive amount of torque. All of our port work is done by hand except for machining the cylinder. The following port work has been
