975cc Big Bore Kit, Polaris 2011- RZR 900 XP/ XP4

Description

The Sparks Racing 975cc Big Block Cylinder Kit is a perfect big bore kit for any RZR 900 XP owner who wants to drastically increase performance without sacrificing reliability. We have designed custom connecting rods for this kit which optimizes rod geometry and are 80 grams lighter than stock to insure both performance and reliability. Most companies are not correcting the rod geometry when they spread the bores on their big bore kits, so they simply offer you an HD stock geometry rod which still must endure extreme side-loads.

SKU: BBKP11900XP98-L (Pump Fuel 11.0:1)

         BBKP11900XP98-H (Race Fuel 12.5:1)

         BBKP11900XP98-T (Turbo 9.0:1)

Big Block Kit Key Features

• • Industry leading one-piece cast cylinder with closed deck design

• • Closed-deck design offers increased cylinder rigidity and gasket sealing capability as compared to an open-deck design

• • Nikisil plated cylinder which offers light-weight extreme durability and performance

• • Enlarged water jackets for increased heat dissipation and cooling

• • Custom designed head gasket to insure gasket integrity

• • Custom CP pistons manufactured specifically for Sparks Racing

• • Custom Carrillo rods to optimize rod geometry

• • Available for pump fuel, race fuel, and turbo applications

Each Kit Includes

• • Sparks Racing 975cc Big Block cylinder

• • A set of CP/Sparks Racing Piston kits

• • A set of Sparks Racing/ Carrillo rods

• • Head & base gasket