S&S Cycle 557C Chain Drive Cam Kit for 2006-2017 Harley-Davidson Twin Cam Big Twin

S&S Cycle 557C Chain Drive Cam Kit for 2006-2017 Harley-Davidson Twin Cam Big Twin

Unlock the performance potential already built into your Twin Cam engine without tearing into the cases or requiring specialized tools. Riders who make the cam swap consistently report stronger pulls from idle through the mid-range, with a throttle feel that transforms everyday commutes and long-distance hauls alike into something worth looking forward to.

Key Features

• Chain drive cam with 0.557″ lift for Twin Cam 96″ and 103″ engines
• Compatible with stock valve springs – no spring upgrade required
• Recommended for Tri-Glides and heavy touring bikes requiring strong low-end torque
• Includes cam bearings and gear cover gasket
• Fits 2006 Dyna and 2007-2017 Big Twin models

Technical Specifications

• Lift: 0.557″
• Drive Type: Chain Drive
• Engine Compatibility: Twin Cam 96″, Twin Cam 103″
• Included Components: Cam bearings, gear cover gasket

Fitment Notes

• Fits 2006 Harley-Davidson Dyna models and 2007-2017 Big Twin models
• Particularly suited to Tri-Glide and heavy touring configurations where low-end torque is critical
• Stock valve springs are compatible – no high-lift spring upgrade required
• Review the Fitment tab for complete year and model breakdown