Milwaukee-Eight Harley-Davidson® Stage II Performance Upgrade at Fat Head Cycles

Milwaukee-Eight Harley-Davidson® Stage II Performance Upgrade at Fat Head Cycles

by Cliff John August 22, 2019

After completing your Stage 1 upgrades on your Milwaukee-Eight Harley-Davidson, you're now ready to start thinking about Stage 2 - upgrading your cam.

Increasing the performance level of your Harley-Davidson® Milwaukee-Eight in stages allows you to ramp up torque, horsepower and throttle response without compromising your riding experience. 

We certainly enjoy performing Stage 1 upgrades in our shop, but we absolutely love installing Stage 2 upgrades on our customers bikes. Why? Well, because we have a 100% success rate of ear-to-ear grins as our Stage 2 customers immediately enjoy a faster, more powerful and responsive motorcycle.

Stage 1 is certainly necessary - but Stage 2 is where it really starts to get fun. 

Stage 2 aftermarket Harley parts are engineered for precise fit and quality – there’s no guesswork involved in their design. These qualities, plus the already-powerful M8 engine platform work seamlessly to up the power, torque and sound quality on your ride.

We've spent countless hours testing aftermarket cam upgrades on Milwaukee-Eight bikes and these are our Stage 2 in-shop and online recommendations for your M8 Harley-Davidson:

Harley-Davidson Stage II Upgrades at Fat Head Cycles

1. 468 CAM ZIP KIT

If you’re looking for a broader torque curve and a power boost that significantly enhances rideability on your Milwaukee-Eight-powered Harley, the Zipper’s Red Shift® cam kit might just fit the bill. This cam kit provides significant increases in both throttle response and power in Harley engines 107” and larger. The pushrods are easy to access when making adjustments, and the cam works perfectly with the high intake airflow in 4-valve heads.

The 468 gets you moving fast at below 2,000 RPMs yet holds its power at 6,000. It dominates in the 2,000 to 4,000 RPM range. The cranking compression holds steady for easy starts and the ramp design ensures smooth, quiet operation while extending the lifespan of the valvetrain.

Red Shift® 468 Cam Zip Kit for Milwaukee-Eight®

RED SHIFT® 468 CAM ZIP KIT FOR MILWAUKEE-EIGHT® W/ CHROME COVERS

The Red Shift® 468 Cam Zip Kit includes the following components:

  • 1 Red Shift 468 bolt-in cam and bearing
  • 1 gasket set  
  • 1 S&S® Quickee pushrod kit with chrome covers

These installation tools are also included:

  • 1 cam sprocket lock tool for a ‘06 FXD, ’07 and later Twin Cam® and ’17 - ‘19 M8 engines  
  • 1 cam bearing R&R tool ’17 – ‘19 M8 engines  

RED SHIFT® 468 CAM ZIP KIT FOR MILWAUKEE-EIGHT® W/ BLACK COVERS

The Red Shift® 468 Cam Zip Kit includes the following components:

  • 1 Red Shift 468 bolt-in cam and bearing
  • 1 gasket set  
  • 1 S&S® Quickee pushrod kit with black covers

These installation tools are also included:

  • 1 cam sprocket lock tool for a ‘06 FXD, ’07 and later Twin Cam® and ’17 - ‘19 M8 engines  
  • 1 cam bearing R&R tool ’17 – ‘19 M8 engines  

 

2. 472 CAM ZIP KIT

Increased horsepower is a reality for those who love riding in the upper RPM range. This kit includes a bolt-in grind for M8 engines 114” and larger. Its components are designed to work with factory valvetrain components and modified valve combinations, porting and modified heads with upgraded springs.

The 472 provides exceptional timing thanks to its ability to maintain low-end torque, and it really shines in M8 engines modified for higher compression and air demands. This cam will perfectly fit the layout of the M8’s cylinder head. Let’s put it this way – if you tend to redline your throttle, the 472 will get you to that point in no time flat. 

Red Shift 472 Cam Zip Kit for Milwaukee-Eight®

RED SHIFT® 472 CAM FOR MILWAUKEE-EIGHT® ENGINES W/ CHROME COVERS

The Red Shift 472 Cam Zip Kit includes new lifters and a Torrington/Koyo® cam bearing. Here are the main kit components:

  • 1 Red Shift 472 bolt-in cam
  • 1 gasket set  
  • 1 S&S® Quickee pushrod kit with chrome covers

RED SHIFT® 472 CAM FOR MILWAUKEE-EIGHT® ENGINES W/ BLACK COVERS

The Red Shift 472 Cam Zip Kit includes new lifters and a Torrington/Koyo® cam bearing. Here are the main kit components:

  • 1 Red Shift 472 bolt-in cam
  • 1 gasket set  
  • 1 S&S® Quickee pushrod kit with black covers

 

3. ’17 - ’19 HARLEY-DAVIDSON® MILWAUKEE-EIGHT® CAM CHEST BUNDLE

Anyone can install a new cam on a Harley Milwaukee-Eight and call it a Stage 2 upgrade, but that’s really only a cam upgrade. To do it right, upgrade the cam and all its supporting components.

We put together a Stage 2 bundle for your ’17 to ’19 M8 touring model that saves you both money and time. The Red Shift 468 cam is unmatched for its ability to significantly increase both throttle response and horsepower. Its specialized design overpowers any airflow restrictions in the exhaust port while boosting torque. In addition to delivering near-instant acceleration off the mark, the 468 works great with factory-installed header pipes and aftermarket exhaust systems.

Our '17-'19 Milwaukee-Eight Cam Chest Bundle includes the following Harley parts and specialized components:

  • Red Shift 468 Cam Shaft
  • S&S Quickee Adjustable Pushrods (black or chrome)
  • S&S 3 Stage Oil Pump and Cam Plate Kit (water/oil-cooled)
  • S&S Tappet Lifter Cuffs
  • S&S Hydraulic Tappets
  • Torrington/Koyo Cam Shaft Bearing
  • Assembly Lube
  • All Gaskets for a Complete Install
  • Free telephone tech support at 301.825.9007

If you're looking to have your Stage II upgrades installed in our shop in Thurmont, MD, simply complete the form below or give us a call in the shop, 301.825.9007. 

Interested but have questions first? Simply complete the form below and we'll get your questions answered fast! 




Cliff John
Cliff John

Author




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