- Flywheels are CNC machined from heat-treated, closed die, steel forgings, which are 114 percent stronger than late style stock steel flywheels
- Fully assembled with premium quaility S&S® heavy duty 7.667" connecting rods, with full width wrist pin ends, and dynamically balanced
- The only joints in the assembly are where the 1.671" diameter connecting rod crankpin is pressed into the flywheels.
- Pinion and sprocket shafts are forged as part of the flywheel
Upgrade your Harley Davidson Big Twin engine with the S&S Cycle 320-0351 flywheel assembly, designed for 2007 and later models. This high-performance component features a 4-3/8 inch stroke and an 8-1/2 inch diameter, offering increased power potential and durability. Crafted from heat-treated, CNC-machined steel forgings, these flywheels are 114% stronger than stock steel versions, ensuring long-lasting performance under demanding conditions. The assembly is fully balanced and trued to less than .0005 inches runout on the pinion and sprocket shaft bearing surfaces, enabling higher RPM capabilities and full compatibility with gear drive cams. It is ideal for use with high-performance pistons and connecting rods with full width wristpin ends, providing a robust upgrade for your engine's internals.
Features:
- Constructed from heat-treated, CNC-machined steel forgings for superior strength and durability
- Fully assembled with premium S&S heavy-duty 7.667-inch connecting rods featuring full width wrist pin ends and dynamic balancing
- Precision trued to less than .0005 inches runout for high RPM operation and compatibility with gear drive cams
- Designed for crankcases with a Timken sprocket shaft bearing, excluding stock style bearing race
- Includes forged pinion and sprocket shafts as integral parts of the assembly
- Suitable for 2008-2009 Harley Davidson FLHR, FLHRC, FLHT, FLHTC, FLHX, and FLTR models
