BMP 1065CC BIG BORE ENGINE KIT APPAREL Secure Locking CollarSuperATV carrier bearings

Secure Locking CollarSuperATV carrier bearings feature a locking collar that clamps around the prop shaft

Restriction is the engines enemy and creates back pressure

Also works great for license plates

They install easily to give you a quiet

BMP 1065CC BIG BORE ENGINE KIT APPAREL Secure Locking CollarSuperATV carrier bearingsThis 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. Choose from our specially designed head gasket for turbo setups or the standard pump gas setup. Stock cylinder exchange required unless