S&S® 4-3/8" Stroke Flywheel Assembly For 2007-'16 B-Model H-D Twin Cam®- Trapezoid/Taper Top Rod S&S Part Number 320-0359

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S&S® 4-3/8" Stroke Flywheel Assembly For 2007-'16 B-Model H-D Twin Cam® - Trapezoid Top Connecting Rod-  S&S Part Number 320-0359

This 4-3/8" stroke flywheel assembly replaces the original flywheels 2007-'16 HD® Twin Cam Engines®, when using stock pistons. Wrist pin end of connecting rods is tapered like stock rods. Sprocket shaft does not have the stock style bearing race pressed on. This flywheel assembly is for crankcases with a Timken® sprocket shaft bearing. Flywheel assembly is three piece design. Pinion and sprocket shafts are forged as part of the flywheel. The only joints in the assembly are where the 1.671" diameter crankpin is pressed into the flywheels. Flywheels are CNC machined from heat-treated, closed die, steel forgings, which are 114% stronger than late style stock steel flywheels. Fully assembled with premium quality S&S® heavy duty 7.659" connecting rods, with tapered wrist pin ends, and dynamically balanced. Assembly is trued to less than .0005" run-out on pinion and sprocket shaft bearing surfaces, making them capable of higher rpm and fully compatible with gear drive cams.

*By choosing to add sprocket shaft race converts this flywheel assessmbly to part # 320-0358.