S&S 1250CC Conversion Kit for Harley-Davidson Sportster
- Forged Pistons - Coated Piston Skirts
- Pistons have larger than stock valve pockets to accept up to 2" valves
- Kit includes S&S 1250CC pistons with rings and wristpins, S&S 3 9/16" bore cylinders, MLS Head, Base and Exhaust gaskets, assembly lube and instructions
- MADE IN THE U.S.A.
*883 models will require the use of XL1200 cylinder heads