1200cc Conversion Kit - XL883 - Silver - 910-0688Saves time because pistons already fit to the cylinders ready to assemble out of the box. Cylinders are constructed from premium aluminum castings with cast in iron liners. No machining. No re balancing of 883 cc flywheels. No cylinder head modifications. Must be used with 883 heads. Kit includes cylinders, pistons with 11. 2 cc dish volume, rings and gaskets (head, base and exhaust). Made in the U. S. A..