Description
67mm Forged Piston Kit for GY6 232cc Engines
The GY6 232cc Cygnus 67mm 4V Forged Piston Kit is designed for performance enthusiasts looking to upgrade their off-road or competition builds. This kit caters to those aiming for improved engine output and efficiency. It is specifically intended for GY6 scooter parts, ensuring compatibility with 4-stroke engines like the QMJ152, QMJ157, QMI152, and QMI157. With its lightweight forged aluminum construction, this piston provides a dependable solution for achieving greater power in your engine.
Piston Construction and Design
This piston features a diameter of 67mm and is constructed from lightweight forged aluminum, making it strong enough to withstand high performance demands. The design includes four valve reliefs, ensuring compatibility with the 4V Cygnus-style cylinder head. The crown is stamped with "67.0" for easy identification and precision fitting.
Installation and Components
The kit includes everything needed for installation: one piston, three compression rings, one oil control ring, a 15mm steel wrist pin, and two circlips. This comprehensive set simplifies the replacement process, allowing for a straightforward installation on compatible engines. Regular replacement of the piston is recommended when performance decreases or when engine components show signs of wear.
Specifications
- Piston Diameter: 67mm
- Overall Height: 38mm
- Wrist Pin Diameter: 15mm
- Compatible Valve Sizes: 23mm intake / 25mm exhaust
- Engine Application: GY6 232cc 4-stroke, 4V Cygnus-style head
- Kit Contents: piston, three compression rings, one oil control ring, wrist pin, two circlips
Fitment
This piston kit is suitable for a range of GY6 232cc 4-stroke engine builds, specifically:
- GY6 QMJ152
- GY6 QMJ157
- GY6 QMI152
- GY6 QMI157
- Various GY6-based 232cc 4V Cygnus head engines
Not sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.
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