S&S® 4 3/8" STROKE FLYWHEEL FOR 2000-'06 B-MODEL H-D TWIN CAM®- FULL TOP CONNECTING ROD S&S PART NUMBER 320-0355

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S&S® 4 3/8" STROKE FLYWHEEL FOR 2000-'06 B-MODEL H-D TWIN CAM®- FULL TOP CONNECTING ROD S&S PART NUMBER 320-0355

This 4-3/8" stroke flywheel assembly replaces the original flywheels 2000-2006 H-D® Twin Cam Engine®, when using performance or big bore pistons. Wrist pin ends of connecting rods are full width (not tapered). This flywheel assembly is for crankcases utilizing Timken® bearing left side main bearings. Pinion shaft has sprocket to drive balancer chain. 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 full width 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 sprocketshaft race converts this flywheel assembly to S&S part# 320-0354