ESP (Earth Surfer Products) Race Ported Zenoah G340RC 4-Bolt Engine - Complete with Clutch and +2mm stroker crankshaft (34.02cc). 

 

This is a G320RC that has been taken by ESP, stroked +2mm and Race Ported. ESP Has ported and enlarged the intake, exhaust, and transfer ports for added power. 

ESP RACE PORTED G340RC ENGINE

£499.75Price