6603 - Signature Series Fully Modified 30.5cc Marine Reed Engine +5mm Long Rod all ports resurfaced

all ports resurfaced

For those of you that are new to ported engines

</p> <p>We are extremely proud to release the TR/OBR 4 bolt reed case

We have also decked the cylinder to raise the compression

6603 - Signature Series Fully Modified 30.5cc Marine Reed Engine +5mm Long Rod all ports resurfacedFully 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