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 kit combining 4.32-inch cylinders with matched cam, cam plate, oil pump, and support components for reliable high horsepower on Harley-Davidson. Everything needed for a performance top-end rebuild without piecing together individual parts.

Features

• 4.32-inch bore cylinders
• Matched high-performance cam and cam plate
• Integral oil pump system
• Complete cam chest package

Specifications

• Brand: S&S Cycle
• Manufacturer Part #: 310-1106D
• Category: Engine Components / Piston Sets - Powersports
• Weight: 44.19 lb

Fitment

Fits Harley-Davidson models. Verify your specific year and engine platform before ordering, as cam chest geometry varies by model generation.

Frequently Asked Questions

What's included in the S&S Power Package?

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

Will this fit my specific Harley model?

This kit is engineered for Harley-Davidson engines. Confirm your year and engine type (Twin Cam, Milwaukee-Eight, etc.) with S&S or your dealer to ensure fitment.

Do I need additional machine work or head work?

The kit includes top-end components. You may need compatible cylinder heads and bottom-end machine work depending on your build goals — consult a qualified engine builder.

What kind of horsepower gain can I expect?

Horsepower depends on other modifications (heads, intake, exhaust, tuning). Contact S&S for dyno results specific to your engine configuration.