Heads and Valves

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NCY EGR Block off plates for GY6 Scooter Engines


Description: PCV block off plate used for removing PCV system on GY6 engines. Most GY6 scooters have sub-par PCV systems often causing massive vacuum leaks that lead to poor performance. When installing this block off plate, it is highly recommended …

101 Octane QMB139 Rocker Arm Assembly for GY6 50cc 139QMB/QMA Scooters


101 Octane QMB139 Rocker Arm for GY6 50cc Scooters. 139QMB/QMA BT13854 Complete rocker mechanism including shaft and valve adjuster for Chinese-built 4-stroke 139QMB/QMA 50cc cylinder heads. Changing the complete unit makes more sense than the individual parts, as damaged parts …

Taida Cylinder Head Combo 63mm 180cc 4V 22/21 Valves for GY6 152QMI 157QMJ (54mm stud spacing)


High-Quality Taida Cylinder Head 63mm 180cc 4V with larger 23/22 valves and improved oversize intake/exhaust port. This cylinder head fits the Taida 4V cylinder kit [180-205cc] for GY6 125/150cc engines (scooters, quads, and buggies). Include Taida 4V Performance camshaft, Taida …