GY6 59mm Cylinder Head
ITEM# TT-16540
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Description
GY6 59mm Cylinder Head for 160-180cc Engines
This GY6 59mm cylinder head suits four-stroke GY6 engines in the 160cc to 180cc range, so it works across a good number of engine-driven vehicles. The head has a larger combustion chamber and carefully set valve dimensions. It is one of the GY6 scooter parts you can fit to help improve engine efficiency and power, which can lead to a smoother ride and quicker acceleration.
Performance Specifications
The cylinder head uses an enlarged 59mm combustion chamber to allow better airflow and more efficient combustion. Exhaust valve diameter is 23mm and intake valve diameter is 27.75mm, which supports effective gas exchange. Exhaust port diameter is 26.5mm and intake port diameter is 27.5mm, helping the engine make the most of its potential.
Installation Details
The overall height is 61.75mm and the stud spacing is 76.7mm, so the head is built for a simple fit on compatible GY6 engines. If the engine is losing performance or the head shows wear or damage, replacing it is recommended to keep the engine running well.
Specifications
- Exhaust Valve Diameter: 23mm
- Intake Valve Diameter: 27.75mm
- Exhaust Port Diameter: 26.5mm
- Intake Port Diameter: 27.5mm
- Overall Height: 61.75mm
- Stud Spacing: 76.7mm
- Fits: GY6 4-stroke engines and engine based vehicles, 160-180cc big bore (GY6 QMI/QMJ 152/157)
Fitment
Fits:
- GY6 QMI/QMJ 152/157 (160-180cc big bore 4-stroke)
- Various unlisted makes and models (GY6 4-stroke engine based vehicles, 160-180cc big bore)
How to choose: Confirm the engine is a 160-180cc big bore GY6 4-stroke, and check that the bore matches a 59mm combustion chamber.
Shop more: GY6 Scooter Parts · Chinese Scooter Parts · Scooter Cylinder Heads & Valves · Scooter Parts
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