Wingsmoto 100cc Big Bore Kit for 64mm Valve GY6 49CC 50CC 139QMB Moped Scooter Engine 50mm Bore Upgrade Set with Racing CDI Ignition Coil Performance Spark Plug (64mm Valve Length)

Fitment: Baja 49cc 50cc 4stroke scooters like motorsports SC-50 sun city,primo,DR50,Dirt Runner 49
Biaotian BT49QT-2,BT49QT-7,BT49QT-9,BT50QT-9,BT50QT-11
Dotera 50QT-11
Eton 49cc 50cc 4stroke like Sport 50
Fly 49cc 50cc 4-stroke scooters
Jalon JL50QT-15,JL50QT-16,JL50QT-18,JL50QT-21,JL50QT-21 Falcon,
Jinlun 49cc 50cc 4-stroke scooters
Jonway 49cc 50cc 4 stroke scooters like warrior 50
Kymco 50cc 4 stroke like Agility 50,People S50 4T,Suer 8 50 4T
Pagsta mini 49cc
Roketa 49cc 50cc 4 stroke scooter such Bahama,Maui,Sicily,Tank,Baotian 50QT-9
Sinski XSJ50QT-6, XSJ50QT-B
Sunl SL50QT-16, SL50QT-18,SL50QT-2,SL50QT-3
Tank 49cc 50cc 4-stroke scooters
Taotao 49cc 50cc 4 stroke scooter such as GT5,Fastwind,AMT50-A1,CY50-A,CY50-B,CY50-T3,Funny50,Roman 50,Retro 50,Speedy50,Venus50
Verucci VC50TS-3M
VIP future champion 4 stroke
Zhong Hu 50cc,Zongshen Metro 50cc
Zongshen ZS50QT-4
and many more GY6 4-stroke 49cc 50cc 60cc 80cc engine

Specifications:
Bore: 50mm
Displacement:100cc
Valve Length: 64mm
Pacakage Included:
1 x Cylinder Head with 64mm valve, WITHOUT camshaft, you have to use your stock one.
2 x Rocker Arms for 64mm Valves
2 x Valve Seals
1 x Oil Pump Assy with Driving Gear
1 x 50mm Bore Cylinder Block
1 x Set of 50mm Piston Assy, Piston, Rings and Wrist Pin
1 x Full Set of Engine Gasket
1 x Set of Intake Manifold and Muffler Bolts
1 x Set of 7 Gram Racing Roller Weights
1 x Racing AC CDI
1 x Racing Ignition Coil
1 x Racing 3-electrode A7TC Spark Plug