S&S 3-31/32" Stroke Flywheel Assembly For S&S 74" KN74 Gen/Gen Engines For 1936-'47 HD Big Twin Chassis
1955-'64 style engines may be installed in 1936-'47 chassis if 1955-'64 inner primary tin cover and primary chain sprocket are used.
This 3-31/32" stroke 8-1/2" diameter flywheel assembly replaces the original flywheels in S&S 74" KN74 engines with generator/generator style crankcases for 1936-'47 HD big twins. 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 quaility S&S mainshafts and heavy duty 7.440" connecting rods.
NOTES:1955-'64 style engines may be installed in 1936-'47 chassis if 1955-'64 inner primary tin cover and primary chain sprocket are used.
Instructions Link (Click Here)
Manufacturer: S&S Cycle
Part #: 320-0014
S&S Flywheel, Assembly, 3-31/32″ Stroke, 8-1/2″ Diameter, Gen/Gen, Balanced to 3-7/16″ Pistons, KN-Series 320-0014
- Brand: S&S Cycle
- Product Code: 320-0014
- Availability: Special Order
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$1,749.95
Tags: S&S Cycle, Harley Davidson, Engine Components, Flywheel