Description
GY6 A-Case Big Bore Stroker Kit for 150 Cc Engines
The GY6 A-Case 63mm Big Bore +3mm Stroker Kit is specifically designed for 150 cc engines in the GY6 QMI and QMJ configurations. This performance kit increases the engine's displacement to 190 cc, providing more power for off-road applications. It is one of the GY6 scooter parts that can significantly improve performance and is suitable for riders looking to boost their engine's capabilities.
Performance Components
This kit includes a 63 mm big bore cylinder, an A8 high-lift camshaft, a piston, and a +3.0 mm stroker crankshaft. The combination of these components ensures that your engine achieves higher performance and efficiency. The included high-lift cam improves airflow, allowing for better combustion and output.
Installation and Compatibility
Designed to fit the A-case configuration, this kit features a cylinder stud spacing of 54 mm and a cylinder skirt outer diameter of 65 mm. Ensure that your engine's specifications match these measurements for proper installation. This product is meant for off-road use only and should not be utilized on public roads.
Specifications
- Application: GY6 QMI/QMJ 152/157, 150 cc A-case engines
- Displacement: 190 cc
- Cylinder Bore: 63 mm
- Cylinder Stud Spacing: 54 mm
- Cylinder Skirt Outer Diameter: 65 mm
- Intake Valve: 28 mm
- Exhaust Valve: 23 mm
- Crankshaft Stroke: 60.8 mm
- Country of Origin: Taiwan
Fitment
This kit is compatible with GY6 QMI and QMJ 152/157 engines that have a 150 cc A-case configuration. Confirm the engine family and specifications before purchasing.
Not sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.
Shop more: GY6 Scooter Parts · Chinese Scooter Parts · Scooter Big Bore & Cylinder Kits · Scooter Parts
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