QMB139 80cc Big Bore GY6 50cc 47mm Gasket Head & Base Set

Upgrade your GY6 50cc scooter's performance with this 47mm Big Bore Head and Base Gasket Set, specifically designed for the QMB139 engine to enable an 80cc displacement.

• 47mm Bore Diameter ensures precise fitment for enhanced combustion chamber volume and increased power output.
• Designed for QMB139 Engines provides a direct replacement for 50cc models looking to upgrade to 80cc performance.
• High-Quality Gasket Material offers superior sealing capabilities to prevent leaks and maintain optimal engine compression.
• Durable Construction built to withstand the higher temperatures and pressures associated with big bore engine configurations.
• Complete Head and Base Coverage includes all necessary gaskets for a comprehensive upgrade, ensuring proper sealing of the cylinder head and base.

Compared to standard 50cc GY6 engines, this 47mm big bore kit significantly increases displacement, offering a noticeable boost in horsepower and torque without requiring extensive engine modification. It's engineered for enthusiasts seeking a more potent and responsive ride from their QMB139 platform.

Key Technical Advantages: Technology and Performance

This gasket set is engineered to facilitate the transition to an 80cc big bore configuration for GY6 50cc engines. It features a 47mm inner diameter, precisely matching the bore required for the upgrade, ensuring optimal compression and power delivery. The robust materials are selected for their ability to maintain seal integrity under the increased thermal and mechanical stresses of a higher displacement engine, translating directly to improved performance and reliability for your scooter.