Big Bore Engine Kit / RZR 1065cc Chain Tensioner Style: (see picture for reference):A Choose from 2 different stages

Choose from 2 different stages

Increased Airflow & Response: Smooth internal walls eliminate turbulence

we trust them for all of our big bore and replacement pistons because we have seen them withstand well beyond the norm

(16-22) RZR900

Ideal for shared vehicles

Big Bore Engine Kit / RZR 1065cc Chain Tensioner Style: (see picture for reference):A Choose from 2 different stagesThis 96mm big bore for your Polaris 1000 significantly increases horsepower and torque! We take the stock 1000 cylinder and precision bore and nikasil plate it to our specification. We then send you with 2 high performance forged pistons, rings, circlips and wristpins. It also includes a base gasket and head gasket. Stock cylinder exchange required unless purchasing outright. Included in base kit: Bored & Re Nikasiled cylinder, two pistons, rings,