S&S CYCLE 106" Hot Set Up® Engine Performance Kit — 3.927" bore, 4.375" stroke, 10.0:1 compression, Wrinkle Black – 07-17 Dyna, 10, 16 Touring, 07-15 Softail

The 106" Hot Set Up® Engine Performance Kit delivers durable, ride-ready power for big-bore Harley applications. 🔧

Precision forged, coated pistons and S&S cylinders increase fin area and improve heat dissipation while remaining compatible with stock and S&S Super Stock heads.

Valve pockets are recessed and enlarged to accept oversize valves and higher-lift camshafts, with an eleven-fin pattern and full cam-side fins that closely resemble OEM styling for efficient cooling.

The kit includes S&S cylinders with gaskets, piston set with rings, a top-end gasket kit, pushrods, tappets, 585CE easy start cams and detailed instructions; a fuel system is not included.

Installation is straightforward with no machining or rebalancing required for standard applications, but EFI systems must be recalibrated after fitment.

This kit is not for Twin Cooled models. Made in the USA. 🇺🇸