{"product_id":"80cc-cylinder-head-assembly-64mm-valves-for-gy6-47mm-big-bore-kit-compatible-with-139qmb-1p39qmb-qmb139-qmi139","title":"80cc Cylinder Head Assembly (64mm Valves) for GY6 47mm Big Bore Kit Compatible with 139QMB 1P39QMB QMB139 QMI139","description":"\u003cdiv\u003eUpgrade your scooter's engine with the \u003cspan style=\"font-weight: bold;\"\u003eRedCap 80cc Cylinder Head Assembly\u003c\/span\u003e (64mm Valves), a high-performance component designed to complement GY6 47mm Big Bore Kit 139QMB 1P39QMB engines. Engineered for increased power and efficiency, this cylinder head assembly enhances combustion, airflow, and overall engine response. Whether you're looking to boost acceleration, improve throttle response, or achieve a smoother ride, this premium replacement part delivers superior performance and durability. Built from high-quality materials, it ensures long-lasting reliability even under intense riding conditions, making it an excellent choice for scooters, mopeds, ATVs, and go-kart enthusiasts.\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003eDesigned as a direct replacement for Chinese 80cc-100cc engines, this cylinder head assembly features 64mm valves for optimal fuel combustion, along with precise intake and exhaust bolt hole spacing for secure installation. Whether you're upgrading an existing engine or replacing a worn-out component, this assembly is compatible with a wide range of QMB139 \/ QMI139 4-stroke engines, ensuring a hassle-free fit. With its precision engineering and superior performance enhancements, the RedCap 80cc Cylinder Head Assembly unlocks the true potential of your ride, giving you the power and responsiveness needed to dominate the road.\u003c\/div\u003e\u003cdiv\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-weight: bold;\"\u003eBullet Point:\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-weight: bold;\"\u003ePerformance:\u003c\/span\u003e Designed for 47mm big bore kits, this 80cc cylinder head assembly enhances airflow, combustion efficiency, and power output. The increased displacement results in noticeable improvements in acceleration, top speed, and overall engine performance, making it a must-have upgrade for riders seeking maximum efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-weight: bold;\"\u003ePrecision Engineered:\u003c\/span\u003e Featuring 64mm intake and exhaust valves, this assembly improves fuel combustion by allowing better air intake and exhaust gas expulsion. The enhanced airflow results in a smoother ride, improved throttle response, and greater fuel efficiency, giving your scooter or moped the power it needs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-weight: bold;\"\u003eDurable Construction:\u003c\/span\u003e Manufactured from high-quality materials and built to withstand extreme conditions, this cylinder head ensures long-term durability. Whether tackling city streets or high-speed cruising, it resists wear, heat, and mechanical stress, ensuring reliable performance over time without compromising engine integrity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-weight: bold;\"\u003eDirect Replacement Engines:\u003c\/span\u003e Designed as an exact fit for Chinese 80cc and 100cc engines, this head assembly seamlessly replaces worn-out or factory components. It is compatible with popular brands and models, including scooters, mopeds, ATVs, and go-karts, eliminating the need for modifications or complex installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-weight: bold;\"\u003eEasy Installation:\u003c\/span\u003e With intake bolt-hole spacing of 44.75mm and exhaust bolt-hole spacing of 49.75mm, this head assembly offers a hassle-free installation process. Whether you're a DIY enthusiast or a professional mechanic, upgrading your engine is straightforward, allowing you to enhance your ride with minimal downtime.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-weight: bold;\"\u003eSpecs:\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-weight: bold;\"\u003e64mm Valves\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\n\u003cspan style=\"font-weight: bold;\"\u003eIntake Bolt Hole Spacing:\u003c\/span\u003e 44.75mm\u003c\/div\u003e\u003cdiv\u003e\n\u003cspan style=\"font-weight: bold;\"\u003eExhaust Bolt Hole Spacing:\u003c\/span\u003e 49.75mm\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-weight: bold;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-weight: bold;\"\u003eKnown to Fit: \u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cul\u003e\n\u003cli\u003eUpgraded 80cc Cylinder Head \u0026amp; Valve Assembly QMB139 \/ QMI139 4-Stroke Engines.\u003c\/li\u003e\n\u003cli\u003eExact replacement part for many Chinese-manufactured brands and models of Chinese Mopeds and Scooters. \u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003e\n\u003cspan style=\"font-weight: bold;\"\u003eNOTE:\u003c\/span\u003e Check out the detailed pictures to see if this will fit your vehicle.\u003c\/div\u003e ","brand":"United Express Distribution","offers":[{"title":"Default Title","offer_id":53092027072623,"sku":"HEAD-0864-U1","price":33.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/0368\/1391\/files\/head-0864_01.jpg?v=1778736039","url":"https:\/\/uedist.com\/products\/80cc-cylinder-head-assembly-64mm-valves-for-gy6-47mm-big-bore-kit-compatible-with-139qmb-1p39qmb-qmb139-qmi139","provider":"United Express Distribution","version":"1.0","type":"link"}