6225 - Race Ported Zenoah 2 Bolt 27.2cc Top End Intake and exhaust ports are

Intake and exhaust ports are modified to our specs as well as the durations

Relieve piston to prevent seizes

CNC porting and hand finishing is all done in-house by the OBR staff

29cc Head Kit Motor He23hp

6225 - Race Ported Zenoah 2 Bolt 27.2cc Top End Intake and exhaust ports are<p>This is a brand new race ported Zenoah 27. 2cc big bore kit. This kit requires a 2mm stroker (not included). 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 done:< p> <p><br >1. Machined Cylinder For