Cylinder Head Assembly - 44-6 2-Stroke Engine, Big Bore, CNC, Dual Valve, Pocket Bike, 49cc, Air Cooled

Big bore head CNC kit for 44-6 2-Stroke Engines. Commonly used for pocket bike / mini bike 49cc air cooled products. This is a dual valve high compression unit. CNC Gold.

44mm big-bore kit for 47cc and 49cc Chinese pocket bikes, mini quads, mini bikes, with case reed inducted engine. For example, stock bore on the '47cc' engine is 40mm - meaning with the stock 32mm stroke, the engine size is actually approximately 40.2cc. This kit will increase your displacement to well over 50cc.