S&S CYCLE 106" Hot Set Up® Engine Performance Kit — 106", 3.927" bore, 4.375" stroke, 10.0:1 – 07-17 Dyna, 07-16 Touring, 07-15 Softail

The 106" Hot Set Up® Engine Performance Kit delivers substantial top-end gains for riders seeking improved torque and throttle response. 🔧🏁

Engineered for enhanced cooling and durability, the kit increases fin area and enlarges the bore and stroke to raise displacement while keeping installation straightforward.

• Forged, coated pistons designed for compatibility with common stock and Super Stock heads
• Enlarged valve pockets to accept oversize valves and higher-lift camshafts
• Eleven fins and a full fin pattern on the cam side closely match OEM appearance
• Kit includes cylinders with gaskets, piston set with rings, top-end gasket kit, pushrods, tappets, chain-drive easy-start cams and clear instructions
• Fuel system is not included; EFI systems must be recalibrated after installation
• Made in the USA

Installation is straightforward with no machining or rebalancing required, making this a practical upgrade for many riders. ⚙️