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United Express Distribution  |  SKU: CYLD-0079-U1

47mm Big Bore Cylinder and Head Kit with Piston and Rings, 80cc, for GY6 50cc 4-Stroke Scooters

Regular price $38.50


Pickup available at 2875 N Berkeley Lake Rd NW #4

Usually ready in 1 hour

Will it fit your machine?

Not sure? Text or email a photo of your old part or your engine model number. We'll confirm it fits before you buy.

Delivery and Shipping

Ships from our Duluth, Georgia warehouse.

Most in-stock orders ship the same business day. UPS orders placed before 3:00 PM ET, USPS orders before 12:00 PM ET. After the cutoff, they go out the next business day.

Standard delivery runs 2 to 6 business days to most US addresses. US territories take 7 to 14. These are carrier estimates, not guarantees.

Free shipping on most parts, no minimum order. Oversized items (body kits, wheels, tires, batteries, and engines) are quoted to your address and shown at checkout before you pay.

We ship UPS and USPS, and email your tracking number as soon as the order leaves.

Questions? Call or text 404-532-9833. Full details on our Shipping page.

Description

80cc Big Bore Kit This kit fits most Chinese Scooters/Mopeds with 50cc, 60cc 4-Stroke GY6/QMB139 engines.

Upgrade your motorcycle engine with the RedCap 61mm Big Bore Cylinder Head and Piston Rings Rebuild Kit, tailored for GY6 engines from 170cc to 200cc. Designed specifically for engines with 57mm stud spacing (Type K-Block), this kit is crafted from durable aluminum alloy for enhanced longevity and performance. Enjoy increased displacement and power, perfect for enthusiasts looking to boost their bike's capabilities. Ensure seamless installation and reliable operation with components built to withstand rigorous use and deliver optimal performance on the road.

  • Complete Big Bore Kit: Enhance your engine with our Complete Big Bore Kit, featuring essential components for a comprehensive upgrade: cylinder, piston & ring set, wrist pin, circlips, head gasket, and base gasket. Designed for easy installation and optimized performance, this all-inclusive kit provides everything you need to elevate your engine’s power and efficiency. Ideal for enthusiasts seeking to maximize their vehicle’s performance potential.
  • Versatile Design: Versatile in design, our Complete Big Bore Kit is meticulously crafted to suit both 80cc 4-stroke GY6/QMB139 engines, delivering substantial enhancements in power and performance. This kit provides a flexible solution to amplify your engine's capabilities. Enjoy noticeable gains in speed and efficiency with components tailored for precise fit and peak performance. Elevate your vehicle with our comprehensive kit.
  • Optimal Performance: Achieve peak performance with our Complete Big Bore Kit, seamlessly compatible with stock carburetors for straightforward installation and immediate performance upgrades. To optimize results, monitor your spark plug and consider utilizing larger jets to fully exploit performance and longevity benefits. This method finely tunes your engine, unlocking optimal power and efficiency gains. Providing it operates at its highest potential.
  • Compatibility: Our Complete Big Bore Kit is engineered to be compatible with a broad spectrum of Chinese scooters and mopeds, offering versatility across various models. Whether you ride a well-known brand or a lesser-known make, this kit provides effortless integration and improved performance. Benefit from a universal upgrade solution that accommodates diverse models, delivering the power and reliability you demand.
  • Good Quality Components: Crafted to exacting standards, our Complete Kit features high-quality components designed for durability, reliability, and extended lifespan of your scooter or moped engine. Each part is meticulously manufactured with precision and attention to detail, ensuring superior quality and performance. Rest assured that our upgrade will keep your ride running smoothly and reliably, providing consistent power and efficiency.

Specs:

  • Diameter: 47mm (53.2mm)

Included:

  • Cylinder
  • Piston & Ring Set
  • Wrist Pin
  • Circlips
  • Head Gasket
  • Base Gasket

Known to Fit:

  • 80cc Big Bore Kit This kit fits most Chinese Scooters/Mopeds with 50cc, 60cc 4-Stroke GY6/QMB139 engines.

Note: Please carefully check the goods' appearance, size, and shape and compare your original goods before ordering.


While this kit works with the stock carburetor, to get the best performance you should always read you spark plug to know if larger jets would give better performance and longevity to you big bore kit.

Piston ring order

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