MILLENNIUM M-Spec Big Bore Cylinder Kit

MILLENNIUM M-Spec Big Bore Cylinder Kit for Polaris 570 (+5.00 mm) Upgrade your Polaris 570 with the MILLENNIUM M-Spec Big Bore Cylinder Kit —a complete, bolt-on cylinder solution engineered for stronger performance, improved durability, and reliable power gains. This kit features a high-performance forged piston system built for demanding rides, plus a full gasket set for a proper fit and dependable sealing. Built in the USA , it’s designed to withstand the heat and stress of big-bore riding. Key Features Complete bolt-on big bore kit for strength, durability, and power Includes high-performance forged piston kit with rings Tool steel wrist pins and locks for long-lasting reliability Includes complete gasket kit Made in the USA Specifications Displacement: 625 cc Material: Aluminum Overbore: +5.00 mm Model/Style: M-Spec / Big Bore Compression Ratio: 10.2:1 Riding Style: UTV and ATV Cylinder Bore Coating: Nickel-Silicon Carbide Bore Size: 104.00 mm Units: Kit Weight: 6.01 lbs (16.16" x 14.02" x 8.47")