1200cc Cylinder and Piston Conversion Kit. Converts your 883 Sportster to 1200cc. Includes two black finished cylinders with milled edge fins. Also includes a set of Sifton moly 9.5:1 reverse dome pistons and rings. The item "Black Big Bore Conversion Kit 883 1200 Cylinder 9.51 Pistons Harley Sportster" is in sale since Thursday, February 9, 2017.This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Engines & Engine Parts\Big Bore & Top End Kits". The seller is "americanclassicmotors" and is located in Zieglerville, Pennsylvania. This item can be shipped worldwide.