GY6 50cc 39mm Bore EGR Cylinder Head with 69mm Valve

Upgrade your 50cc 4-stroke scooter or ATV with this fully assembled EGR-style cylinder head, specifically designed for QMB139 engines. It features a 39mm bore and a large 69mm valve, ensuring optimal performance and airflow.

• 39mm Bore Diameter: Provides increased displacement for enhanced power output.
• 69mm Valve Size: Facilitates superior gas intake and exhaust, boosting engine efficiency.
• EGR Style Design: Engineered for reliable operation and emissions control.
• Complete Assembly: Ready for direct installation, saving you time and effort.
• Durable Construction: Built with high-quality materials for lasting performance and resilience.

Compared to standard 50cc heads, this upgraded component offers a noticeable boost in torque and horsepower. It’s an ideal solution for riders seeking a performance edge or replacing a worn-out cylinder head on their GY6 or QMB139 engine.

Key Technical Advantages: Technology and Performance

This GY6 50cc cylinder head leverages advanced engineering for superior performance. Its precise 39mm bore works in harmony with the expansive 69mm valves to maximize combustion efficiency and power delivery. The EGR (Exhaust Gas Recirculation) system integration ensures compliance with emissions standards while maintaining high-output capabilities, making it a smart choice for both performance enthusiasts and riders who value reliability and environmental responsibility.