SSP-G 63 mm Performance Cylinder Kit is a high-displacement big-bore upgrade designed to maximize power and torque on GY6 150cc engines. Machined from precision-cast aluminum with a durable iron sleeve, this kit delivers excellent heat dissipation, improved compression, and superior reliability — ideal for performance enthusiasts looking for real gains.
When installed, this big-bore kit increases engine displacement to approximately 170 cc, giving your scooter or ATV a noticeable boost in acceleration and top-end speed. Perfect for high-performance builds, custom projects, or anyone wanting a stronger GY6 setup.
Features:
-
63 mm performance cylinder for significant power increase
-
Durable cast-aluminum body with iron sleeve for strength and cooling efficiency
-
Boosts GY6 150 cc engines to about 170 cc displacement
-
Includes cylinder, piston, piston rings, wrist pin, clips, and gaskets
-
Direct bolt-on design for most standard GY6 150 engines
-
Compatible with performance camshafts, carbs, and exhaust upgrades
Specifications:
-
Brand: SSP-G
-
Product Name: 63 mm Big Bore Cylinder Kit
-
Material: Aluminum / Iron Sleeve
-
Bore Size: 63 mm
-
Application: Scooters / ATVs / Go-Karts using GY6 engines
Compatibility:
Fits most GY6 150 cc-based vehicles
