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

S&S 100″ Sidewinder Big Bore Kit For Harley Twin Cam

Inspired by our Pro Stock Drag Race engines, these updated big bore kit utilizes a Ductile Cast Iron liner wrapped in cast aluminum for optimum thermal conductivity and performance. Bolt-in kits do not require 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.

Features:

• Bolt in kit
• Low friction Ductile Cast Iron liner
• Forged pistons
• 10.5:1 Compression
• 4″ Stoke, 4″ Bore, 4.937″ Cylinder length, 
• No machining, balancing, or splitting the crankcases
• 88″ engines are boosted to 100″
• Includes cylinders, pistons, gaskets, and instructions

Note: Although not mandatory, S&S recommends adding an oil cooler to bikes ridden in warmer climates.