Description

• Product

• • 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

  Notes

  • Will not work with XR1200 models.
  • 883 models will require the use of XL1200 cylinder heads to achieve correct compression ratios.
  • For the best performance CNC head porting, performance cams, exhaust and intake upgrades are recommended.