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

S&S Cycle Power Packs combine big-bore cylinders (4.32"), matched cams, cam plates, oil pump, and related internals to deliver high-output horsepower without the piecemeal cost of sourcing parts separately. Purpose-built kits for Harley-Davidson engines looking to add displacement and performance in one shot.

Features

• 4.32-inch big-bore cylinders
• Matched cam and cam plate
• Included oil pump and gasket set
• Complete cam chest hardware

Specifications

• Brand: S&S Cycle
• Manufacturer Part #: 310-1232D
• Category: Engine Components / Piston Sets - Powersports
• Weight: 44.19 lb

Fitment

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

Frequently Asked Questions

What's included in the Power Pack?

Cylinders, pistons, cam, cam plate, oil pump, gaskets, and all necessary cam chest hardware for assembly.

Do I need to machine my cases for these cylinders?

Most Harley big-bore kits require case work. Consult S&S technical specs or a Harley machine shop for your specific engine.

Will this fit my year and model Harley?

Power Packs are designed for Harley engines, but fitment varies by year and displacement. Check the S&S compatibility chart or contact tech support with your VIN.

Do these kits include instructions?

S&S provides technical documentation. Professional installation by a qualified shop is strongly recommended for engine work.