Cylinders & Big Bore Kits
- Cylinders & Big Bore Kits
- Engine
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Showing 97–144 of 269 results
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NCY Big Bore Kit w/Head (48mm); Honda Dio,Sym DD50
$156.18 -
NCY Big Valve Cylinder Head (58.5mm, 2 Valve); Genuine/GY6
$139.45 -
NCY Big Valve Cylinder Head (61mm): 171cc High-Flow for GY6
$143.85 -
NCY Cylinder (Cast Iron, 66mm); Zuma 125
$124.86 -
NCY Cylinder Kit 4T (81cc, Iron, 50mm); 139QMB
$134.08 -
NCY Cylinder Kit (158cc, 58.5mm); Yamaha Zuma 125
$199.85 -
NCY Cylinder Kit (43mm, 66.8cc); SYM 50cc, Lance 50cc 4T
$236.88 -
NCY Cylinder Kit (72cc, Iron,12mm Pin) Horiz. Minarelli 2T
$152.74 -
NCY Cylinder Kit (Cast; 52mm, 88cc); 139QMB
$152.96 -
NCY Performance Cylinder Head (50mm, 81cc, Alloy); 139QMB
$179.25 -
NCY Piston Kit (50mm); Dio/DD50 Big Bore Kit
$58.97 -
NCY Piston Rings (50mm, for 81cc Cylinder Kit); 139QMB
$40.22 -
NCY Ring Set (50mm); Dio/DD50 Big Bore Kit
$35.19 -
Nut Cylinder Head; Stella 4T
$11.52 -
OEM-Style – 100cc (High Performance) Cylinder Piston Top End Kit for GY6-50 QMB139 Chinese Scooter Motors. Bore 50mmRequires Head #634585
$76.69 -
OEM-Style – 100cc Cylinder Head 50mm for GY6-50 QMB139 Scooter Motors. Valves Installed. with Rocker Arm Assy
$76.69 -
OEM-Style – 100cc Cylinder Piston Top End Kit with Non-EGR Head for GY6-50 QMB139 Chinese Scooter Motors. Bore 50mm Shirt OD 52.50mm
$129.79 -
OEM-Style – 49cc (Standard) Cylinder Piston Top End Kit for GY6-50 QMB139 Chinese Scooter Motors. Bore 39mm
$53.09 -
OEM-Style – 60cc (High Performance) Cylinder Piston Top End Kit for GY6-50 QMB139 Chinese Scooter Motors. Bore 44mm
$58.99 -
OEM-Style – 80cc (High Performance) Cylinder Piston Top End Kit for GY6-50 QMB139 Chinese Scooter Motors. Bore 47mmRequires Head #634585
$58.99 -
OEM-Style – 80cc Cylinder Head 47mm for GY6-50 QMB139 Scooter Motors. Valves Installed. with Rocker Arm Assy
$58.99 -
OEM-Style – 80cc Cylinder Piston Top End Kit with Non-EGR Head for GY6-50 QMB139 Chinese Scooter Motors. Bore 47mm
$110.58 -
OEM-Style – Big Bore Kit GY6-150cc (61mm) Comes with All Parts Shown Replaces the Stock 57mm Bore Cylinder Sleeve OD 64mm
$200.59 -
OEM-Style – Crankshaft 90cc 2 Stroke for E-Ton Implus TXL90, Thunder AXL90, Sierra DXL90, Viper RXL90, RXL90R ATVS Splines 15 Shaft OD 16 Piston Pin 12 Stroke 42mm for Most ATVS with Cylinder
$70.79 -
OEM-Style – Cylinder & Cylinder Head Kit GY6-177cc 62.5mm
$224.19 -
OEM-Style – Cylinder & Head Kit 110cc Chinese ATVS and Dirtbikes
$141.59 -
OEM-Style – Cylinder & Head Kit 125cc Chinese ATVS and Dirtbikes 52mm Bore -28th Sprocket
$141.59 -
OEM-Style – Cylinder & Head Kit 125cc Chinese ATVS and Dirtbikes 54mm Bore – 28th Sprocket
$171.09 -
OEM-Style – Cylinder & Head Kit 125cc Chinese ATVS and Dirtbikes 54mm Bore – 32th Sprocket
$171.09 -
OEM-Style – Cylinder & Head Kit 70ccChinese ATVS and Dirtbikes
$114.45 -
OEM-Style – Cylinder Head 39mm 49cc 2 Stroke for E-Ton Impuls TXL50, Lightning AXL50, Viper RXL50cc ATVS 49cc Beamer, Matrix 50 Scooters Polaris, Alpha Sports, Dinli, Jog, Vento
$37.74 -
OEM-Style – Cylinder Head 39mm 49cc GY6-QMB Motors Valve L 64mm (With Valves, Springs, EGR) for Most 49cc Chinese Scooters
$47.19 -
OEM-Style – Cylinder Head 39mm 49cc GY6-QMB Motors Valve L 69mm (With Valves, Springs, EGR) for Most 49cc Chinese Scooters
$47.19 -
OEM-Style – Cylinder Head 39mm Honda Copy 50 ATV, Dirt Bike with Cam-Valves Installed Cam Sprocket Teeth 28
$53.09 -
OEM-Style – Cylinder Head 44mm 60cc GY6-QMB Motors Valve L 69mm (With Valves, Springs, EGR) Work Well with 44-47mm Cylinders
$53.09 -
OEM-Style – Cylinder Head 47mm E-Ton Viper RXL70cc for Most 2 Stroke ATVS and Scooters
$47.18 -
OEM-Style – Cylinder Head 47mm Honda Copy 70/90 ATV, Dirt Bike (With Valves and Cam) Cam Sprocket Teeth 28
$58.99 -
OEM-Style – Cylinder Head 52mm (With Valves and Cam) Cam Sprocket Teeth 28 Honda Copy 110-125cc ATV, Dirt Bike
$58.99 -
OEM-Style – Cylinder Head 54mm (With Valves and Cam) Cam Sprocket Teeth 28 Honda Copy 125cc ATV, Dirt Bike
$76.69 -
OEM-Style – Cylinder Head 54mm (With Valves and Cam) Cam Sprocket Teeth 32 Honda Copy 125cc ATV, Dirt Bike
$76.69 -
OEM-Style – Cylinder Head 54mm 100cc 2 Stroke for Most 2 Stroke ATVS and Scooters
$35.39 -
OEM-Style – Cylinder Head 90cc 2 Stroke for E-Ton Implus TXL90, Thunder AXL90, Sierra DXL90, Viper RXL90, RXL90R ATVS + Adly Polaris, Dinli, Alpha Sports
$35.39 -
OEM-Style – Cylinder Head Cover GY6-150, ATVs, GoKarts, Scooters
$16.51 -
OEM-Style – Cylinder Head Cover with EGR for Many 49cc 4 Stroke Chinese Scooters
$29.49 -
OEM-Style – Cylinder Head Cover with EGR GY6-150, ATVs, GoKarts, Scooters
$31.85 -
OEM-Style – Cylinder Head Cover Without EGR GY6-150, ATVs, GoKarts, Scooters
$12.01 -
OEM-Style – Cylinder Head GY6-177cc 62.5mm
$117.99 -
OEM-Style – Cylinder Head Type 1 EGR GY6-150 ATVs, GoKarts, Scooters H 60 B 57 (with Valves and Springs)
$70.79