Description
S&S Cycle Bolt-In Sidewinder 4 inch Big Bore Kits for ’99-17 Harley Davidson Twin Cam (Select Silver or Wrinkle Black)
- Bolt in – no machining, balancing, or splitting the crankcases; install can be performed with engine still in frame
- Cast Ductile Iron Sleeve in cast aluminum for superior heat transfer
- 88″ engines are boosted to 100″
- 96″ and 103″ engines are boosted to 110″
- 10.5:1 compression (w/ stock 85cc heads) makes for a very streetable and dependable engine that also responds well to performance cams
- Complete kits include cylinders, forged pistons, rings, piston pins, clips and gaskets
- Available with wrinkle black or silver powdercoat finish cylinders
NOTE: Not for use with S&S 79cc heads.






Reviews
There are no reviews yet.