S&S M8 Cam Support Plate

Harley Milwaukee-Eight Cam Chest Upgrade (Billet Aluminum)

Your M8 Deserves Better Than Stock

If you’re upgrading cams…pushing your M8 harder…or planning a serious performance build—the cam chest matters.

A weak or unstable setup can affect:

• Valve train stability
• Oil control
• Long-term reliability

That’s why serious M8 builds start here.

S&S M8 Cam Support Plate

Designed to improve strength, stability, and serviceability inside the Milwaukee-Eight cam chest.

Precision machined from billet aluminum, this plate provides the foundation needed for high-performance M8 setups while improving durability over stock components.

Why Riders Upgrade the Cam Support Plate

• Increased structural rigidity
• Better long-term reliability
• Supports aggressive riding + performance builds
• Ideal for cam upgrades and cam chest work

👉 This is one of those upgrades you do once—and do right.

Precision Billet Construction

• Precision machined from billet aluminum
• Increased dimensional stability
• Stronger than factory components
• Built for real-world M8 performance applications

Built for Serviceability Too

• Removable passage plugs for easier servicing
• Designed to simplify future maintenance and upgrades

👉 Smart engineering matters when you’re deep inside an engine build.

Ready for Performance Builds

Perfect for:

• Cam upgrades
• Performance baggers
• M8 reliability builds
• High-mileage Touring bikes
• Riders planning long-term engine upgrades

VVT Compatible

✔ Compatible with Milwaukee-Eight models equipped with VVT (Variable Valve Timing)

Made in the USA

Built by S&S Cycle in the USA using premium materials and precision machining.

Fitment

Fits a massive range of Harley-Davidson Milwaukee-Eight models including:

• Touring models
• Road Glide / Street Glide
• Softail models
• CVO models
• Low Rider ST / S
• Road King
• Tri Glide / Freewheeler

📌 See full fitment chart below for exact applications

Who This Is For:

• Riders upgrading M8 cams
• Performance bagger builds
• Touring riders improving reliability
• Anyone building a stronger cam chest setup

Link to:

• M8 cam kits
• Lifters
• Pushrods
  
• Tuners

Fitment Guide: