NCY Big Valve High-Flow Cylinder Head - 61mm GY6 (171cc) duct Engineered for riders who demand

Engineered for riders who demand versatility

Honda Zoomer (international — carbureted and fuel-injected)

and base gasket

Complete 4-stroke 50cc engine for CSC go

NCY Big Valve High-Flow Cylinder Head - 61mm GY6 (171cc) duct Engineered for riders who demandMaximize your motor's torque and top end breathing capacity with the premium NCY Big Valve High Flow Cylinder Head. Engineered specifically to complement large displacement performance upgrades, this 61mm cylinder head features optimized porting and oversized valves that allow your engine to move air in and out of the combustion chamber far more efficiently. The result is an immediate boost in throttle response, cleaner acceleration, and smoother