10 Best Big Bore Kit Gy6 Scooter In The Us - Black Friday 2024
Glixal GY6 100cc 50mm Complete Big Bore Cylinder Rebuild Kit with Performance Big Valve Cylinder Head Assy for 139QMB 139QMA 147QMD Engine Scooter Moped ATV Go-Kart (69mm-18.5/20.5mm Larger Valves)
Main highlights- Use Large Valve Heads to Get More Power for Your GY6 139QMB 139QMA 147QMD Scooter ATV Go Kart Engine!!
- This Big Bore Rebuild Kit Comes with 18.5/20.5mm Large Valve Cylinder Head Assy (Stock is 16/18.5mm).
- Please Note: The Engine Side Cover Gasket is for a Short Case Version (8 Bolt).
- Glixal Piston Rings: DLC Wear Resistant Coating. This Coating will Also Reduce the Friction Coefficient to Protect the Cylinder Sleeve.
- Compatible with 69mm Long Valve Style Heads. If your Original Head Has 64mm Valves, Please Must Change Your Rocker Arms with The Ones in Our Kit.
- Attention: AT marking face to the piston, the 6mm small hole goes up or away from the Motor !!!
9.9Exceptional
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Value for Money2
TRKIMALGY6 Cylinder Rebuild Kits Trkimal 100cc Big Bore Kit for 64mm Valve 49CC 50CC 139QMB Moped Scooter Engine 50mm Bore Upgrade Set with 6pin Racing CDI Ignition Coil Performance Spark Plug Clutch Spring
Main highlights- Upgrades parts kits for most of 50cc scooter
- Upgrade engine parts included cylinder body kits, cylinder head kits, camshaft, camshaft seat kits, gaskets kits, oil pump and gear, clutch spring sets, copper roller sets, 6pins racing AC CDI, ignition coil and racing 3-electrode spark plug
- This big cylinder kit will upgrade your gy6 50cc 60cc 80cc to 100cc, without EGR, to get more RPM,more power, faster maximum speed.
- Easy Installation
- 64mm valve length version
9.8Exceptional
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3
GOIRTUTSS61mm Big Bore Cylinder Kit fit for 4 Strokes GY6 125cc 150cc 152QMI 157QMJ Engine Scooter ATV & Quad Moped Rebuild Kit Cylinder Head
Main highlights- Package Included:1*61mm Cylinder Kit（as shown in the figure）
- Note: Please check the number and size of the product carefully before placing the order. Make sure it fits your machine,Thank you!
- Diameter of the Cylinder Kit：61mm;Diameter of Piston Pin：15mm
- Cylinder Kit fit for：4 Strokes GY6 125cc 150cc 152QMI 157QMJ Engine Scooter ATV & Quad Moped Rebuild Kit Cylinder Head
- Characteristic:The reticulated process has good sealing performance,increases the contact surface,increases the oil storage and lubrication function,reduces wear and reduces fuel consumption.Efficient heat dissipation,strong power,durable and wear-resistant.
9.7Exceptional
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4
XMT-MOTOXMT-MOTO Scooter GY6 50CC To 80CC Big Bore Cylinder For VIP Roketa Taotao Baja Silver
Main highlights- Package included: Cylinder head with pre-installed 80cc high lift valves,Cylinder body,Cylinder gasket set,A9 high perfomance camshaft,best overall performance cam for GY6 50 upgrade,Valves assembly w/ springs installed,Piston & Rings Set,69mm high lift Camshaft holder and rocker arms assembly,Intake manifold
- Material: Aluminum
- Fit for scooters with 139QMB，139QMI or 147QME engines; Cylinder Stroke：41.5mm; Cylinder Diameter：47mm;
- Bore kit works with: Roketa 49cc 50cc 4 stroke scooters such as Bahama,Maui,Sicily,Tank,Baotian 50QT-9 Taotao 49cc 50cc 4 stroke scooters such as GT5, Fastwind, atm50-a1, cy50-a,cy50-b,cy50-t3,funny 50,Roman 50, Retro 50,Speedy 50, Venus 50 SUNL 49CC 50CC 4 stroke scooters VIP future champion 4stroke Jonway 49cc 50cc 4 stroke scooters such as warrior 50 Baja 49cc 50cc 4 stroke scooters such as motorsports SC-50 sun city,primo Zhongshen ZS50QT-4 Baotian BT19QT-2, BT49QT-7,BT49QT-9
- Aftermarket Parts 100% Brand New
9.5Excellent
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5
GOOFITGOOFIT 57.4mm Big Bore Cylinder Kit Replacement for 150cc 4stroke GY6 157QMJ Engine Rebuild Kit Cylinder Head Chinese Scooter
Main highlights- Warranty:We are always available to help our customers.If you are not satisfied with the order,please leave us a message.Wish you have a happy shopping experience,we are committed to providing the best service.
- The reticulated process has good sealing performance,increases the contact surface,increases the oil storage and lubrication function,reduces wear and reduces fuel consumption.Efficient heat dissipation,strong power,durable and wear-resistant.
- The cylinder is the core of the engine.It burns the mist-like oil and air in it,pushes the piston inside to move up and down,converts chemical energy into mechanical energy,and generates power.
- Cylinder diameter:57.4 mm/2.25";Piston diameter:57.4mm/2.25";Piston pin diameter:15mm/0.59";Piston pin length:42mm/1.65"(Please check the size carefully before you place the order).
- Big Bore Cylinder Kit Replacement for TaoTao SUNL Buyang JCL Baja 150cc 4stroke GY6 157QMJ Engine Rebuild Kit Chinese Scooter.
9.2Excellent
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6
CLEOCLEO GY6 50cc-100cc Cylinder Head Kit Assy 50mm Big Bore with 69mm Valves for 139QMA 139QMB Engine Scooter Moped ATV Go Kart Quad
Main highlights- Valves 100cc Cylinder Diameter: 50mm Wrist Pin OD: 12.77mm
- Fit Models:For scooters with 139QMB or 139QMI engines Scooter
- Fit GY6 50cc-100cc 69mm 4 Strokes 139QMB or 139QMI engines Scooter
- Cylinder Head:Intake Valve OD 18mm;Exhaust Valve OD 16mm; Head Assembly with 69mm
- Before ordering check your head assembly for the correct valve length.
9.1Excellent
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7
ZTDZZHZTDZZH 61mm Big Bore Cylinder Head Kit for GY6 125cc to 180cc Engine with 69mm Valves scooter taotao kazuma ATV Moped
Main highlights- Head Valve length 69mm，Not 64mm
- For your quick use of new accessories, please consult the picture information and product description before purchasing
- Fit GY6 150cc to 180cc 152QMI 157QMJ Engine
- Cylinder Bore Diameter ： 61mm
8.8Very Good
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8
ZTDZZHZTDZZH 50mm Bore Cylinder Head Kit for GY6 50cc to 100cc Engine with 69mm Valves scooter taotao kazuma ATV Moped
Main highlights- Kit includes: Cylinder head, cylinder block assembly, intake pipe screw, exhaust pipe screw, exhaust pipe nut, exhaust pipe gasket four locating pins.
- Head Valve length 69mm， not 64mm
- For your quick use of new accessories, please consult the picture information and product description before purchasing.
- Fit GY6 50cc to 100cc 139QA 139QMB Engine
- Cylinder Bore Diameter ： 50mm
8.7Very Good
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9
MaoyubeltMaoyubelt 47mm Big Bore Kit GY6 50cc to 80cc Scooter Moped 139 QMB 139QMB Cylinder Piston Rings
Main highlights- Supplied as shown including: 1x Cylinder Block + 1x Piston + 1x Complete Ring Set + 2x Cirq clips + 1x Piston Pin + 2x Head Gasket Set + 2x Valve Oil Seal
- Give your machine the new power and torque it really deserves, and have more fun with the power at your finger tips.
- Fits many models suchas YERFDOG, SUNL, SYM, PGO, KYMCO, VENTO, STRADA, ROKETA, FUJI, WILDFIRE, KAZUMA.
- Diameter: 47mm (53.2mm)
- Change the size of your engine, and feel the POWER.
- Big Bore mostly fits:GY6 or GY6 engine clone (139qmb) Scooters, 50cc GY6 Go Kart engine, 50cc ATVs, 50cc Dune Buggies, 50cc Buggies.
8.6Very Good
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10
ZTDZZHZTDZZH Cylinder Head Kit 50mm Bore for GY6 50cc,70cc,90cc,100cc,110cc Engine with 69mm Valves scooter huayang taotao ATV Moped
Main highlights- Kit includes: Cylinder head, cylinder block assembly,
- Head Valve length 69mm， not 64mm
- For your quick use of new accessories, please consult the picture information and product description before purchasing
- Fit 50cc to 110cc GY6 Engine
- Cylinder Bore Diameter ： 50mm
8.4Good
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