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

S&S Cycle Power Package combines big bore cylinders (4.32"), matched camshaft, cam plate, and oil pump for high-performance engine builds on Harley-Davidson. This complete kit delivers reliable horsepower gains without requiring sourcing multiple components separately.

Features

• 4.32" big bore cylinders
• Matched camshaft and cam plate
• Integrated oil pump
• Complete cam chest package

Specifications

• Brand: S&S Cycle
• Manufacturer Part #: 310-1110D
• Category: Engine Components / Piston Sets - Powersports
• Weight: 44.19 lb

Fitment

Fits Harley-Davidson models. Verify your specific engine displacement and year for compatibility before ordering.

Frequently Asked Questions

What engine models does this Power Package fit?

Fits Harley-Davidson. Confirm your year and engine type (Twin Cam, Milwaukee-Eight, etc.) with S&S before purchase.

Is this a complete bolt-on kit?

This kit includes cylinders, camshaft, cam plate, and oil pump — all major cam chest components needed for a high-performance build.

Do I need a tuner after installing this kit?

Yes. A fuel management system and dyno tuning are typically required to properly calibrate the engine after a Power Package installation.

What kind of horsepower gains can I expect?

Results vary by base engine, fuel quality, and tuning. Work with a qualified builder or dyno shop for realistic expectations on your specific bike.