Classic and Classy Motorcycles Ltd

Historical Context
The 1979 Harley-Davidson FXS Low Rider represents a pivotal era in motorcycle design and culture, blending the classic Harley-Davidson style with performance enhancements that appealed to a broad audience of riding enthusiasts. Incorporating an S&S Shovelhead 92CI (1500cc) engine into this model elevates it from a historical piece to a custom powerhouse, merging traditional aesthetics with significantly enhanced performance capabilities.

Technical Specifications and Performance

• Year: 1979

• Base Model: Harley-Davidson FXS Low Rider

• Engine: S&S Shovelhead 92CI (1500cc) aftermarket engine

• Engine type: Air-cooled, four-stroke, V-twin

• Compression ratio: Higher than stock, specific to S&S engine specs

• Carburetion: Upgraded carburetor to match engine performance

• Ignition system: Upgraded to electronic ignition for improved reliability and performance

• Cooling system: Air-cooled

• Fuel capacity: 3.5 US gallons

• Wheelbase: Approximately 64.5 inches

• Horsepower: Significantly increased from original, specific numbers depend on engine tuning

• Torque: Significantly increased from original, specific numbers depend on engine tuning

• Transmission: 4-speed manual, potentially upgraded to handle increased power

• Frame: Original with possible modifications for performance and stability

• Suspension: Upgraded front and rear to improve handling and ride quality

• Braking system: Upgraded to accommodate increased performance

• Dry Weight: Varies with custom modifications

Customization and Performance
The integration of an S&S Shovelhead 92CI engine into a 1979 FXS Low Rider transforms the motorcycle into a custom beast designed for both performance enthusiasts and admirers of classic Harley-Davidson aesthetics. Customization can extend beyond the engine, including the drivetrain, suspension, brakes, and aesthetics to create a motorcycle that is truly one-of-a-kind.

Challenges and Considerations
Customizing a vintage Harley-Davidson with a modern high-performance engine like the S&S Shovelhead 92CI involves navigating a series of challenges, from ensuring the compatibility of components to maintaining the balance between performance enhancements and the bike's original character. Attention to detail and expertise in both classic and modern motorcycle technologies are essential for a successful project.

Conclusion
A 1979 Harley-Davidson FXS equipped with an S&S Shovelhead 92CI (1500cc) engine represents the pinnacle of motorcycle customization, offering an unmatched combination of classic Harley style and modern performance. This project not only pays homage to the rich heritage of Harley-Davidson but also pushes the boundaries of what these iconic machines can achieve, offering riders an unparalleled experience of power, performance, and style.