Currently customers must send out their cylinders for replating after the cylinder becomes worn or damaged. The process of plating is an inconvenience for all involved as there are core charges, shipping to and from, and lengthy waiting times. Magnum eliminates these hassles by providing a ready-to-install Bigbore kit with no core deposit. Magnums cylinders look virtually identical to the OEM with cast numbers and all. Big Bore Kit comes complete with gaskets, cylinder, and JE piston kit.