Whether you are just looking to clean-up your existing cylinder or if you are trying to get the most you can out of your 650cc Arctic Cat, this big bore kit will work great for you. We have three different piston compression ratio options to choose from. NOTE: Pistons are not included in big bore kit because of the different options.

Applications:
Arctic Cat 650 H1 / 650 H1 Prowler

Cylinder bore (650 -> 700)
Kit includes: Bored & re-plated cylinder, base gasket and head gasket.

piston kits (650 -> 700)
Kit includes: Piston ,circlips, rings and wrist pin.

NOTE: Cylinder bore does NOT come with piston kit. You must order AC650BBK and then the piston of your choice!