S&S Cycle Power Packs — Harley-Davidson Electra Glide, Softail Heritage Classic, Electra Glide Classic (1955-2026)

S&S Cycle Power Package is a complete engine rebuild kit combining 4.32" big bore cylinders, matched high-performance cam, cam plate, oil pump, and supporting components. Designed to deliver reliable horsepower gains without requiring a full custom build.

Features

• 4.32" bore cylinders
• Matched cam and cam plate system
• High-flow oil pump included
• Complete cam chest components
• Engineered for reliability at elevated power levels

Specifications

• Brand: S&S Cycle
• Manufacturer Part #: 310-1104D
• Category: Engine Components / Piston Sets - Powersports
• Weight: 44.19 lb

Fitment

Fits Harley-Davidson models. Confirm your specific engine platform and year compatibility with S&S Cycle before ordering, as Power Packages are designed for particular engine families.

Frequently Asked Questions

What's included in the Power Package?

4.32" cylinders, matched cam, cam plate, oil pump, and all internal cam chest components needed for installation.

Do I need machine work on my engine cases?

Cylinder installation typically requires honing and fitting by a qualified Harley engine builder. Consult S&S or your mechanic before ordering.

Will this kit work on my specific Harley model year?

Power Packages are engineered for specific engine platforms. Contact S&S Cycle with your VIN or engine number to confirm fitment.

Is tuning required after installation?

Yes. Increased displacement and airflow will require fuel mapping and ignition tuning for optimal performance and reliability.