883 to 1200 Big Bore Conversion Kit

This comprehensive kit directly addresses the desire for more power by increasing the engine's displacement from the stock 883cc to a robust 1200cc. The kit includes precisely matched cylinders, pistons, and all necessary gaskets, including head, base, and exhaust gaskets. The pistons are pre-fit to the cylinders, meaning they are ready for assembly right out of the box, saving considerable time and effort. The 3 1/2 inch big bore cylinders, when used with stock 883cc heads, achieve a 9.4:1 compression ratio. This conversion kit is proudly Made in the USA and is available in an attractive wrinkle black or silver powdercoat finish to match your motorcycle's aesthetic. This conversion kit is specifically designed for Harley-Davidson Sportster models from 1986 to 2017, ensuring a precise fit and optimal performance for that range.