S&S CYCLE Cylinder Kit - 100" - Silver 910-0642

Looking to unlock serious displacement and power without pulling your engine? The S&S Cycle 100" Cylinder Kit transforms your 88" big twin into a potent, streetable powerhouse—all with the engine still mounted in the frame. This bolt-in solution delivers the displacement gains and compression ratio you need for reliable performance gains, whether you're running stock heads or upgrading to a high-flow setup.

The cast ductile iron sleeve paired with cast aluminum construction provides exceptional heat dissipation, keeping cylinder temperatures in check even during extended cruising or spirited riding. You get a complete, ready-to-assemble kit with everything needed for installation, meaning no machine work, no case splitting, and no downtime waiting for custom fabrication.

• Bolt-in installation
• Engine stays in frame
• 88" to 100" displacement
• 10.5:1 compression ratio
• Cast ductile iron sleeves
• Cast aluminum construction
• Superior heat transfer
• Forged pistons included
• Complete gasket set included
• Piston pins and clips included
• No case machining required
• No crankcase splitting required
• No balancing required
• Compatible with performance cams
• Not compatible with 79cc heads
• MPN: 910-0642