> Cylinder kit NCY 171cc (61mm) for GY6 125-150cc

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Cylinder kit NCY 171cc (61mm) for GY6 125-150cc View larger

Cylinder kit NCY 171cc (61mm) for GY6 125-150cc

1100-1288.6

New product

NCY

GY6 171cc (61mm) Cylinder Kit From NCY. Give your GY6 based scooter some serious power with this bolt on 171.3cc kit for most GY6 125/150cc engines. With this 61mm cylinder kit for the GY6 engine you dont have to bore the crankcase. With most 61mm big bore kits, you have to bore the crankcase to make room for the 65mm cylinder base external diameter but not with this kit because of the 62,5mm cylinder base. It also has a light weight cut-down piston to increase performance even more. It’s highly recommended to jet this kit significantly rich because of its high performance capability. To maximize performance and efficiency, it’s recommended to get our 61mm big valve head as well. Some stock heads may not fit. Have a look at our Decompression Tube Assembly, which replaces your dipstick and allows excess crank case pressure to be released. It’s a good idea to install one of these alongside any cylinder kit upgrade.

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USD$ 169.49

Accessories

  • Cylinder head NCY Oversize 171cc for GY6 125-150cc

    Reference: 1100-1254.5

    Brand: NCY

    2V Cylinder head NCY Oversize 171cc for GY6 125-150cc

    Valve Size: Intake-27.5, Exhaust-23.5. This head will allow your cylinder to breathe better! Works great with our 61mm cylinder assembly. See below for dyno results. And you're wondering how can this get even better, right? Check out these Stainless Steel racing Valves to go with your new top end. When changing a cylinder kit or an exhaust, it's a good...

    USD$ 140.24
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  • Complete engine gasket set NCY 170cc

    Reference: 1100-1277.1

    Brand: NCY

    Complete engine gasket set NCY 170cc for GY6 150cc Engine

    Complete gasket kit. Includes head, base, exhaust, intake, valve cover, secondary air, timing chain and case gaskets.

    USD$ 21.74
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    In stock

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