Description
GY6 67mm 4V Cylinder Head for B-Case Engines
This GY6 67mm (232cc) cylinder head is specifically designed for B-case GY6 4-stroke engines, making it a reliable performance upgrade for your scooter. It includes key components such as a camshaft, roller rockers, and anodized head and cam covers, providing a complete solution for your engine needs. As one of the GY6 scooter parts, it is ideal for those looking to improve their engine's performance and reliability. This part is suitable for a range of applications including various makes and models.
Key Features
The cylinder head features an exhaust valve diameter of 23mm and an intake valve diameter of 25mm, ensuring efficient airflow and improved combustion efficiency. With exhaust and intake port diameters of 27mm and 30mm respectively, this design promotes better exhaust flow and intake performance. Its overall height is 144mm, fitting snugly within B-case engines that have a stud spacing of 57mm.
Installation Notes
To install this cylinder head, a 96L cam chain is required, which is not included with the product. The recommended valve lash settings are 0.10mm for the intake valve and 0.12mm for the exhaust valve, which are important for maintaining engine performance. This part is not suitable for riding on public roads or land and is meant for off-road use only.
Specifications
- Exhaust Valve Diameter: 23mm
- Intake Valve Diameter: 25mm
- Exhaust Port Diameter: 27mm
- Intake Port Diameter: 30mm
- Overall Height: 144mm
- Stud Spacing: 57mm
Fitment
This cylinder head is compatible with B-case engines, including GY6 QMI/QMJ 152/157 models.
- Various makes/models
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 Cylinder Heads & Valves · Scooter Parts
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