S&S CYCLE Cam - 551 Series - Chain Drive 330-0002

If you're running a touring bike and tired of timing chain lash robbing you of power and precision, the S&S Cycle 551 Series Cam with gear drive eliminates the slack entirely—delivering more consistent valve timing and unlocking higher lift potential. By reversing rear cam rotation, this kit provides additional lobe clearance, meaning stronger low-to-midrange torque where it counts on the street. You'll feel the difference across the entire RPM band, especially in the 1,000–4,000 RPM sweet spot.

Technical Specifications:

• Chain drive elimination
• Increased valve timing accuracy
• Reverses rear cam rotation
• Enables higher cam lifts
• Includes cams, gears, bearings
• Billet inner and outer gears
• Compatible with stock pushrods
• Compatible with stock springs
• Compatible with stock lifters
• Optimized 1,000–4,000 RPM range
• Improved low and midrange torque
• Designed for touring bike compression (9:1–9:9)
• Requires professional installation
• Requires hydraulic press
• Requires gear cover material removal
• Requires coil bind inspection
• Requires valve clearance verification
• Requires bearing and gasket replacement
• Higher valve train noise possible
• Made in the U.S.A.
• MPN: 330-0002