Description

• Product

• • Increased fin area for better heat dissipation
  • Increase bore size from 3.750″ to 3.927″
  • 4.375″ stroke, 10.0:1 compression with stock heads
  • Easy installation; no machining or rebalancing required
  • Forged coated pistons are compatible with stock or S&S Super Stock 79cc and 89cc heads
  • Valve pocket recessed in S&S pistons are enlarged for oversize valves and higher lift cams
  • 11 fins and full fin pattern on cam side of cylinders closely resembles OEM shape
  • Kit includes; S&S cylinders with gaskets, piston set with rings, top end gasket kit, pushrods, tappets, 585CE chain-drive easy start cams and instructions
  • A fuel system is not included
  • Made in the USA

  Notes

  • EFI system must be recalibrated.