Description
If you’re running a stock or mildly modified Harley big twin and want genuine performance gains without a complete engine rebuild, the S&S 106″ Hot Set Up Kit delivers real-world improvements in power delivery and reliability. This bolt-on solution increases displacement and breathing capacity while maintaining compatibility with your existing chassis and heads—no machine work required. You get a complete top-end package engineered for easy installation and immediate results.
What’s Included & What You Get:
- Bore increased to 3.927″
- 4 3/8″ stroke maintained
- 106 cubic inch displacement
- 10:1 compression ratio
- Forged, coated pistons
- Enhanced fin area cooling
- Recessed valve pockets
- Oversize valve compatible
- 585CE chain-drive cams
- Stock engine height preserved
- Stock piston weight maintained
- No machining required
- No rebalancing needed
- Pushrods and tappets included
- Complete gasket kit included
- Installation instructions provided
- Fuel system sold separately








