S&S Cycle Cam Chest Kits — Harley-Davidson Electra Glide, Softail Heritage Classic, Electra Glide Classic (1955-2026)

S&S Cycle Cam Chest Kit is a complete camshaft and gear assembly for Harley-Davidson big-twin engines. Engineered to increase valve lift and duration, unlocking measurable horsepower and torque gains over factory cams while maintaining reliability.

Features

• Complete cam chest assembly — ready to install
• Increased valve lift and duration
• S&S Cycle engineering and quality control
• Designed for Harley big-twin engines

Specifications

• Brand: S&S Cycle
• Manufacturer Part #: 310-1012C
• Category: Engine Components / Cam Gears
• Weight: 10.8 lb

Fitment

Fits Harley-Davidson big-twin engines. Verify your specific engine type and model year with S&S Cycle before ordering to confirm compatibility with your build.

Frequently Asked Questions

Will this fit my Harley big-twin engine?

This kit is designed for Harley big-twin engines, but fitment varies by year and engine type. Contact S&S Cycle or your dealer with your VIN to confirm.

Do I need to upgrade fuel mapping with this cam kit?

Yes — a fuel tuner or ECU recalibration is recommended to optimize performance and prevent lean running after cam installation.

Is professional installation required?

Cam chest installation is intermediate to advanced work. Most riders have a qualified Harley technician handle the job to ensure proper valve timing and clearances.

What kind of power gain can I expect?

Horsepower and torque increases depend on your engine displacement, compression ratio, and supporting modifications. S&S publishes dyno results for specific cam profiles.