Description
If you’re building a high-output stroker engine, your factory flywheel won’t cut it. The S&S CYCLE Stroker Flywheel is engineered to handle the increased loads and rotational forces of a larger displacement build without sacrificing reliability. With a massive 1.671″ crankpin and 4140 steel construction, this is the kind of component that separates serious engine builders from the rest.
The 3-piece design with an integral main shaft eliminates weak points in the assembly, while Timken bearing compatibility gives you a proven upgrade path for long-term durability. Installation is straightforward—these flywheels fit directly into stock crankcases with zero modifications required, making them an intelligent upgrade whether you’re freshening an existing engine or starting from scratch.
- 4140 steel construction
- 3-piece assembly design
- 1.671″ crankpin diameter
- Integral main shaft
- Timken bearing compatible
- Stock casefit, no mods
- Made in USA
- Twin Cam compatible
- MPN: 320-0361






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