S&S Cycle 70-84 BT 103in Sidewinder Big Bore Stroker Kit - Gloss Black
A S&S 103" 3-5/8" Sidewinder big bore stroker kit is an economical route to a larger displacement engine. This kit contains nearly everything needed to take a stock 74" or 80" HD® shovelhead engine up to 103" displacement.
- 5" stroke small diameter dynamically balanced S&S flywheel assembly
- S&S 3-5/8" bore high tensile cast iron Sidewinder® cylinders
- Forged pistons with wristpin and rings
