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

S&S Cycle Power Packs bundle big-bore cylinders (4.32"), matched camshaft, cam plate, and oil pump for carb or EFI Harley engines. A complete bolt-together kit designed to add reliable horsepower without requiring individual component sourcing.

Features

• 4.32" big-bore cylinders
• Matched S&S camshaft and cam plate
• S&S oil pump included
• Complete cam chest components
• High-flow carburetor or EFI compatible

Specifications

• Brand: S&S Cycle
• Manufacturer Part #: 310-1105D
• Category: Engine Components / Piston Sets - Powersports
• Weight: 44.19 lb

Fitment

Fits Harley-Davidson engines. Verify your specific engine displacement and year before ordering, as Power Pack kits are engineered for different platform generations.

Frequently Asked Questions

Do I need to machine my cases for this kit?

Most Power Packs drop into stock Harley cases, but machine work may be required depending on your engine year and condition. Have a builder inspect your cases before ordering.

Is a new carburetor or fuel injection tuner required?

The cylinders and cam will require fuel and ignition recalibration for optimal performance. A carburetor jetting change or EFI tuning is highly recommended.

What's included in the Power Pack?

Cylinders, pistons, matched camshaft, cam plate, oil pump, and gasket sets. You reuse your stock heads and rocker boxes.

Will this fit my 1990s Harley?

Power Packs are engineered for specific Harley platforms. Confirm your engine family and year with S&S before purchase — compatibility varies widely.