Converts '86-'21 883 cc and 1200 cc Sportster models to 1250 cc displacement
Forged pistons have larger than stock valve pockets and accepts up to 2.00- valves
Forged pistons - coated piston skirts with measurement window and S&S logo
No machining or rebalancing is required
Kit includes S&S 1250 cc pistons with rings and wristpins, S&S 3-9/16- bore cylinders, MLS (Multi-Layer Steel) head, base and exhaust gaskets, assembly lube and instructions
Made in the USA
Will not work with XR1200 models.
883 models will require the use of XL1200 cylinder heads to achieve correct compression ratios.
