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

S&S Cycle Power Packs are complete big-bore engine kits combining 4.32-inch cylinders with matched pistons, cam, cam plate, and oil pump for reliable high-horsepower builds. Engineered as a bolt-together system to maximize performance while minimizing complexity and cost.

Features

• 4.32-inch big-bore cylinders
• Matched piston and ring set
• Cam, cam plate, and oil pump included
• Complete cam chest kit — all components engineered together

Specifications

• Brand: S&S Cycle
• Manufacturer Part #: 310-1102D
• Category: Engine Components / Piston Sets - Powersports
• Weight: 44.19 lb

Fitment

Fits Harley-Davidson models. Verify your specific year and engine type with S&S Cycle before ordering to ensure compatibility with your frame and existing internals.

Frequently Asked Questions

What's included in the Power Pack?

Cylinders, pistons, cam, cam plate, oil pump, and all necessary cam chest components — a complete bolt-together kit.

Do I need to buy anything else to install this?

Installation also requires gaskets, fasteners, and fluid. Consult your shop manual or S&S documentation for the full parts list.

Will this fit my stock Harley frame?

Power Packs are designed for Harley engine bays, but fitment depends on year, model, and existing modifications. Confirm with S&S before purchase.

What horsepower can I expect?

Output depends on your tune, carburetor, exhaust, and how the kit is assembled. Contact S&S for dyno data specific to your configuration.