Description
S&S Flywheel Assembly for Evolution Engines
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This 4-1/4″ stroke 8-1/2″ diameter flywheel assembly replaces the original flywheel in Evolution engines
Flywheels are CNC machined from heat-treated, closed die, steel forgings, and are stronger than cast iron or late style steel flywheels
Dynamically balanced and fully assembled with premium quality S&S mainshafts and heavy duty 7.44″ connecting rods
Made in the USA
Product Note:
| Country of Origin | USA |
| Diameter | 8-1/2 in. |
| Engine Type | Evolution Big Twin |
| Material | Steel |
| OEM Reference | Varies (make selection above) |
| Stroke | 4.25 in. |
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