100″ Sidewinder Big Bore Kit For Harley Twin Cam 1999-2006

Features

• S&S Cycle 4″ big bore cylinder and piston kit boosts 88″ Twin Cam engines to 100″
• Bolt-in kit does not require any machining, rebalancing or splitting the crankcases
• The biggest cylinder bore that can be installed in a stock crankcases without machining!
• Complete kit include cylinders, pistons, gaskets, and instructions
• Set up for 4″ stroke
• 4.937″ Cylinder length
• Forged pistons
• Compression ratio: 83cc CNC Ported Stock Heads 10.8:1, 85cc Stock Heads 10.5:1, 89cc S&S Heads 10.1:1