S&S Wrinkle Black Big Bore 883 to 1200 Conversion Kit for Harley Sportster 86-22

  
Increase displacement from 883cc to 1200cc. Saves time because pistons are already fit to the cylinders - ready to assemble out of the box. Cylinders are constructed from premium aluminum castings with cast-in iron liners. No re-balancing of 883cc flywheels. 9.7:1 with stock 883cc heads. Kits include cylinders, pistons, rings and gaskets (head, base and exhaust). IRON / ALUMINUM / CAST.