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The Best Gy6 Big Bore Kit of 2020 – Reviewed and Top Rated

2,517 Reviews Scanned

SaleRank No. #1
hongyu 61mm Big Bore Cylinder Head Kit for GY6 150cc to 180cc Engine with 69mm Valves scooter taotao kazuma ATV Moped
  • Fit GY6 150cc to 180cc 152QMI 157QMJ Engine
  • Head Valve length 69mm,Not 64mm
  • Cylinder Bore Diameter : 61mm
  • For your quick use of new accessories, please consult the picture information and product description before purchasing
Rank No. #2
Complete GY6 Cylinder Head Rebuild Kits with valves, Trkimal 57.4mm 150cc Big Bore Upgrade Kits for 4 stroke 157QMJ Engines Chinese scooter moped parts, GY6 Engine parts Sunl Roketa Peace
  • 【Cylinder Bore】: 57.4mm / Non-EGR Cylinder body
  • 【Full sets of parts】: Complete parts is suitable for motorcycle maintenance shop, motorcycle parts supermarket and personal use with nice price.
  • 【Apply to】: GY6 4 stroke 125cc/150cc engine for most of chinese scooter, atv and go karts
  • 【Parts included】:GY6 150cc Cylinder Head Comp, 57.4mm Bore Cylinder Block, Set of 57.4mm Piston Assy, Piston, Rings and Wrist Pin, Full Set of Engine Gasket, 6pins CDI, Ignition coil, DC regulator, relay, A7TC Spark Plug, Set of Intake Manifold and Muffler Bolts, and Exhaust locking ha, Set of 14 Gram roller , Rocker Arms, Valve Seals, Oil Pump Assy with Driving Gear, Camshaft, Camshaft chain 90, belt 835*18*30, Chain adjuster, Oil screen, spring, cover and oil seal, Starter clutch, intake mani
Rank No. #3
GY6 125cc/150cc Engine Upgrade to 180cc with Cylinder Head Valves and Rebuilt Kit, 61mm Big Bore kits with Piston and Ring Assy for 152QMI 157QMJ Engine Chinese Scooter Moped ATV Go Kart Quad
  • 【Cylinder Bore】:Upgrade from 57.4mm to 61mm, Cylinder kits with more power
  • 【Full sets of parts】: Complete parts is suitable for motorcycle maintenance shop, motorcycle parts supermarket and personal use with nice price.
  • 【Apply to】: GY6 4 stroke 125cc/150cc engine for most of chinese scooter, atv and go karts
  • 【Parts included】:GY6 180cc Cylinder Head Comp with valves, 61mm Bore Cylinder Block, Set of 61mm Piston Assy, Piston, Rings and Wrist Pin, Gaskets.
  • 【Package in cluded】Cylinder head sets and cylinder kits
Rank No. #4
GY6 Cylinder Rebuild Kits Kymlaa 100cc Big Bore Kit for 69mm Valve 49CC 50CC 139QMB Moped Scooter Engine 50mm Bore Upgrade Set with 6pin Racing CDI Ignition Coil Performance Spark Plug Clutch Spring
  • This big cylinder kit will upgrade your gy6 50cc 60cc 80cc to 100cc, without EGR, to get more RPM,more power, faster maximum speed.
  • 69mm valve length version
  • Simple Installation
  • With cylinder body kits, cylinder head kits, camshaft, camshaft seat kits, gaskets kits, oil pump and gear, spring sets, copper roller sets, 6pins racing AC CDI, ignition coil and racing 3-electrode spark plug
  • Upgrades parts kits for most of 50cc scooter
Rank No. #5
69mm Valve Big Bore Kit 100cc replacement for GY6 49CC 50CC 139QMB Moped Scooter Engine 50mm Bore Upgrade Set with Racing CDI Ignition Coil Performance Spark Plug
  • This big bore kit will upgrade your gy6 50cc 60cc 80cc to 100cc, without EGR, to get more RPM,more power, faster maximum speed.
  • We have 2 versions, 64mm and 69mm valve length version. Please confirm before ordering.
  • Easy installation With racing AC CDI, ignition coil and racing spark plug included
  • This is one of the best upgrades you can do to your 50cc Scooter
Rank No. #6
GY6 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
  • This big cylinder kit will upgrade your gy6 50cc 60cc 80cc to 100cc, without EGR, to get more RPM,more power, faster maximum speed.
  • 64mm valve length version
  • Easy Installation
  • 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
  • Upgrades parts kits for most of 50cc scooter
Rank No. #7
Glixal ATMT1-008 Performance Big Bore Cylinder Kit GY6 80cc 47mm for 139QMB ATV Scooter Moped Go Kart
  • 1.Inner Diameter of Cylinder: 47mm
  • 2.Outer Diameter of Piston Pin: 13mm
  • 3.High Quality Durable Piston Rings
  • 4.Include Cylinder,Piston,Piston Ring,Piston Pin,Piston Pin Clip,Valve Oil Seal,Gaskets,Tensioner Gasket,Exhaust Gasket,Intake&Exhaust Studs,Exhaust Nut
  • 5. High Performance Upgrade 47mm Cylinder Rebuild Kit for GY6 49cc 50cc 60cc 80cc engine
Rank No. #8
Chanoc 61mm 180cc Big Bore Kit for GY6 150cc ATV Scooter 157QMJ Engine
  • 61mm bore
  • Upgrade your engine from 150cc to 180cc
  • Widely used for GY6 150 engine upgrade
  • Fit for 157QMJ and 1P57QMJ engine
  • Package come with cylinder head,piston,piston rings,stud,gasket
Rank No. #9
Glixal ATMT1-011 139QMB 139QMA Scooter Big Bore Cylinder Kit Rebuild Kit GY6 100cc 50mm Moped ATV Go-Kart
  • 1.Please note this kit is only used for GY6 139QMB 4-Stroke Engine.
  • 2.Inner Diameter of Cylinder: 50mm
  • 3.Outer Diameter of Piston Pin: 13mm
  • 4.Include Cylinder,Piston,Piston Ring,Piston Pin,Piston Pin Clip,Valve Oil Seal,Gaskets,Tensioner Gasket,Exhaust Gasket,Intake&Exhaust Studs,Exhaust Nut
  • 5. High Performance Upgrade 50mm Cylinder Rebuild Kit for GY6 49cc 50cc 60cc 80cc 100cc engine
Rank No. #10
Suuonee Cylinder Kit, Big Bore 61mm Motorcycle Cylinder Kit Piston Gasket Set for GY6 150CC 200CC Engine
  • Fitment: Cylinder kit fits for GY6 150CC 200CC engines.
  • Configuration: Cylinder kit is equipped with a complete cylinder kit for easy installation. Its piston bore is 61 mm in diameter and completely replaces old or damaged.
  • High quality: Made of high-quality aluminum alloy material,cylinder kit is not easy to rust, not easy to corrode, durable and can be used for a long time.
  • Performance: Cylinder kit helps to increase thermal efficiency, support the piston, and reduce friction and leakage.
  • Service commitment: If you have any question or any unsatisfactory about the product, you can contact our customer service at any time, when we received it,we will deal with it as soon as possible.

Last update on 2021-05-22 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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