S&S Cycle 84-99 Evolution Carb BT Engine 4-1/4in Stroke Flywheel Assembly

S&S Cycle is well-known for building serious performance components for Harley-Davidson motorcycles. If you're looking to rebuild or upgrade the engine in your 1984-1999 Evolution big twin, this flywheel assembly is a solid choice. It's designed to replace the original flywheels and is balanced to work with stock 80" cast pistons, making it a direct fit for many popular models like the Harley-Davidson FLHTC Electra Glide Classic, FLSTC Heritage Softail Classic, and FXD Dyna Super Glide.

These flywheels are CNC machined from heat-treated, closed die steel forgings, which means they are considerably stronger than cast iron or even later-style steel flywheels. This robust construction is crucial for handling the increased stresses of performance riding. The assembly comes fully balanced and is pre-assembled with premium S&S mainshafts and heavy-duty 7.440" connecting rods, ensuring a well-built unit ready for installation. This attention to detail in materials and assembly means you're getting a component built to last and perform.

When undertaking an engine rebuild of this magnitude, it's always a good idea to consult the manufacturer's installation instructions for specific details and any additional components you might need. This flywheel assembly is a key part of a strong engine build, providing a reliable foundation for your motorcycle's power.