S&S Cycle 475C Camshaft Kit for 2017-Up Harley-Davidson M-Eight
The S&S 475C camshaft kit unlocks noticeably stronger throttle response and mid-range torque in your M-Eight without requiring any valve train modifications. Whether carving canyon roads or touring the highways, riders feel the difference immediately – more pull in the powerband where it counts most on the street, backed by S&S Cycle’s industry-leading testing.
Key Features
- True bolt-in design requiring no valve train modifications
- Compatible with stock pushrods, valve springs, and hydraulic lifters
- Optimized for street performance on 107ci and 114ci M-Eight engines
- Chain drive version for plug-and-play installation
- Dyno, street, and track tested before release
- Made in the USA
Technical Specifications
- Lift: .475″
- Duration: 213.5 degrees
- Engine Compatibility: 107ci and 114ci M-Eight
- Drive Type: Chain
- Tappet Type: Hydraulic
Fitment Notes
- Fits 2017-Up Harley-Davidson M-Eight models
- No adjustable pushrods or spring upgrades required
- Verify your specific model year and displacement before installing
- Review the Fitment tab for complete year and model breakdown





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