6603 - Signature Series Fully Modified 30.5cc Marine Reed Engine +5mm Long Rod Our cranks are CNC machined

Our cranks are CNC machined before being pressed back together and hand trued

Crankcase Gasket

">We guarantee performance of this top end to be as much if not more than similary priced ported top ends from our competitors

billet intake

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6603 - Signature Series Fully Modified 30.5cc Marine Reed Engine +5mm Long Rod Our cranks are CNC machinedFully ported 30. 5cc reed engine. Comes complete as shown in the picture with a Zenoah EZ start. Engine mounts and carb not included. 45" cat The following work has been done: disassemble crank to install +5mm long rod and re balance combustion chamber cut to accommodate +2mm stroke crank and dome re cut. 5mm cylinder spacer used to compensate longer connecting rod eyebrows transfer runner knife edged transfer ports enlarged reshaped intake port