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 big-bore engine assembly combining 4.32-inch cylinders with matched cam, cam plate, oil pump, and supporting components for reliable high-horsepower output on Harley-Davidson engines.

Features

• 4.32-inch big-bore cylinders
• Matched cam and cam plate
• Integrated oil pump
• Complete cam chest assembly

Specifications

• Brand: S&S Cycle
• Manufacturer Part #: 310-1103D
• Category: Engine Components / Piston Sets - Powersports
• Weight: 44.19 lb

Fitment

Fits Harley-Davidson models. Verify exact year and engine family compatibility with S&S Cycle or your dealer before ordering.

Frequently Asked Questions

What engine platform does this fit?

This Power Package is designed for Harley-Davidson. Check with S&S or your dealer for specific year/model compatibility.

What's included in the Power Package?

4.32-inch cylinders, matched cam, cam plate, oil pump, and all necessary cam chest components for installation.

Do I need a tuner after installing this kit?

Engine modifications typically require fuel mapping. Consult with your builder or tuner on the specific tune required for your bike.

What kind of horsepower should I expect?

Power output depends on your base engine, fuel system, and tune. S&S publishes dyno results for various configurations — contact them or your builder for specifics.