GY6 150 STAGE 1 PERFORMANCE KIT. With an abundance of GY6 150's on the market, a need for bolt on extra power is now. available through Scooterworks. Thanks to the great products from NCY, this kit includes a low mount performance exhaust. and the NCY Transmission kit. Over 13% savings had by purchasing the kit as a whole!

This high compression 171cc kit (or as some call it 172cc) requires no case boring unlike some others on the market, and is also a "drop in" kit. It is the largest big bore kit you can do on the GY6 A motor (Chinese GY6 QMJ157).

taida 172cc 61mm big bore kit (od 62.7) high performance for gy6 motors includes 28.5/24 taida cylinder head with valves installed (fits:54mm) 61mm taida cylinder with piston & piston rings... MSRP: Now: $425.00

tfc 63mm cylinder and stroker crankshaft kit - gy6. 63mm tfc cylinder and head, a8 high lift cam, and +3.0mm stroker crank kit for gy6 150cc vehicles with a-case engines. 190cc displacement! cylinder bore: 63mm cylinder stud spacing: 54mm (a case) exhaust valve: 23mm intake valve:...

If you are looking for performance upgrades for your GY6, Ruckus, Navi, Zuma, Metro or even Maddog scooter this is the spot. We specialize in making small bore GY6 engines faster and GY6 swapping Honda Ruckus scooters. We have plenty of step by step videos to show repairs and parts installs via our YouTube videos.

Big Bore Kits for GY6 150cc Buggy Engines. piston, rings, cylinder, gaskets and more

Whether you're a casual weekend warrior or a serious racer, GY6 performance parts will give you the competitive edge you need to get ahead of your riding buddies. Our performance camshafts will change the power profile of your GY6 engine. There are …

180cc B-BLOCK LONG CASE ENGINE KIT WITH FOR SCOOTERS SSP-G 180cc BIG BORE POWER KIT FOR 150cc 4-STROKE GY6 ENGINES. THIS COMPLETE POWER PACK COMES WITH A 63mm CYLINDER AND MATCHING CRANKCASE WITH ALL OF THE...