S&S CYCLE Cam Kit with 4 gears - 510G 33-5177

If you're running a Twin Cam engine and chasing consistent power delivery, timing chain lash is costing you precision and headroom for aggressive cam profiles. The S&S Cycle Cam Kit with 4 gears eliminates the play inherent in stock chain drives, locking in accurate valve timing while the gear-driven design reverses rear cam rotation—opening up clearance for higher lift cams and stronger mid-range performance. This is a serious upgrade for builders and racers who demand reliability and repeatability.

Installation requires professional-level expertise and equipment; this is not a bolt-on job. You'll need a hydraulic press and fabrication knowledge to machine the inner gear cover and properly seat the components. Plan accordingly and consider professional installation to ensure proper fitment and longevity.

• Camshaft gear drive system
• Eliminates timing chain lash
• Reverses rear cam rotation
• Enables higher cam lifts
• Peak strength 3000–5000 RPM
• Includes both cams
• Inner and outer gears
• Cam bearings and gaskets
• Includes complete hardware kit
• Requires professional installation
• Requires gear cover machining
• U.S.A. manufactured
• Twin Cam engine specific
• MPN: 33-5177