S&S Cycle 4" Bolt On Sidewinder Big Bore Cylinder and Piston Kit Wrinkle Black - 910-0599

• These bolt-in kits don't require any machining, rebalancing or engine removal, and include just about everything you'll need to complete the installation

• The biggest cylinder bore that can be installed in a stock crankcase without machining!

• Bolts in

• No machining, balancing, or splitting the crankcases

• 96" and 103" engines end up at 110" respectfully

• Complete kits include cylinders, pistons, gaskets, and instructions

• Choose from wrinkle black or silver powder coat cylinders - matches stock finish

• Set up for 4-3/8″ stroke

• 4.937″ Cylinder length

• Forged piston

• .75 pop up dome volume

• Compression ratio: 79cc S&S Cycle heads will be 11.2:1, 83 CNC heads will be 10.7:1, 85cc heads will be 10.5:, and 89cc S&S Cycle heads will be 10.2:1

• Match with S&S Cycle 585 cams, Power tune Headers, MK45 mufflers and a S&S Cycle Stealth air cleaner for the best possible performance