S&S CYCLE Cylinder Kit - Twin Cam 910-0481

If you're looking to unlock genuine performance gains from your Twin Cam engine without the complexity of case-splitting or cylinder boring, the S&S CYCLE Big Bore Kit delivers a straightforward path to increased displacement and power. The bolt-on design lets you swap cylinders in a single afternoon—no machine work required—while the premium aluminum castings with cast-iron liners ensure durability at high RPM. This kit pairs seamlessly with stock cylinder heads, making it an ideal foundation for forced induction builds or naturally aspirated performance upgrades.

• Premium aluminum castings
• Cast-in iron liners
• Bolt-on installation
• No case splitting required
• Includes pistons, rings, gaskets
• Stock head compatible
• Black or silver finish
• U.S.A. manufactured
• Twin Cam application
• MPN: 910-0481
• Requires skilled technician
• Verify clearances before assembly