98mm Big Bore Cylinder Kit

The Cylinder Works Big Bore Cylinder Kit offers a significant upgrade for your Polaris RZR XP 900, increasing its displacement from 875cc to a substantial 971cc via a 98mm bore. Included in the kit is the Cylinder Works 98mm big bore cylinder, a Vertex matched piston with rings, a wrist pin and clips, and a comprehensive top-end gasket set. The installation is designed as a direct bolt-on, eliminating the need for any machine work. This kit is made in the USA and is suitable for 4-stroke engines. Important considerations for installation include the mandatory use of heavy-duty aftermarket connecting rods or a Hot Rods connecting rod. Additionally, it is recommended to upgrade the OEM cam chain tensioner to a Hot Cams automatic cam chain tensioner conversion kit to prevent jumping cam timing. This big bore cylinder kit is compatible with various Polaris RZR XP 900 EFI 4x4 and RZR 4 XP 900 EFI 4x4 models from 2011 to 2013, as well as RZR 900 models from 2014.