GY6 80cc 47mm Bore EGR cylinder head with 64mm valve

GY6 80cc 47mm Bore EGR Cylinder Head with 64mm Valve

Upgrade your scooter's performance with this fully assembled EGR-style cylinder head, specifically designed for GY6 80cc applications and compatible with QMB139 engines. This head features a precise 47mm bore and a 64mm valve, engineered to enhance your engine's airflow and combustion efficiency for noticeable power gains.

• 47mm Bore Size ensures optimal displacement for an 80cc upgrade, maximizing power output.
• 64mm Valve Diameter allows for significantly improved airflow into and out of the combustion chamber.
• 59.5mm Overall Height provides a direct fit for many GY6 engine configurations.
• 17mm Intake Port Diameter facilitates robust fuel-air mixture delivery.
• 18mm Exhaust Port Diameter efficiently expels burnt gases for better engine breathing.

Compared to standard 50cc cylinder heads, this 80cc upgrade offers a substantial increase in displacement, leading to greater torque and higher top speeds. The EGR (Exhaust Gas Recirculation) style is designed for specific emissions compliance while maintaining performance, making it a versatile choice for riders seeking more power without compromising legality where required.

Key Technical Advantages: Enhanced Airflow and Increased Displacement

This cylinder head is engineered for superior performance, featuring larger valve diameters and a bore size optimized for 80cc displacement. The precise port dimensions and overall height ensure a compatible fit, while the EGR design addresses emissions standards. Invest in this high-performance part to unlock your GY6 engine's full potential.