The RS548 was designed to produce strong broad power torque in modified Milwaukee-Eight® engines. Unique timing maintains excellent low-end torque while still producing excellent power over the entire RPM range.  The RS548 is an excellent choice for a Touring model application where producing the wide torque is most important.

Designed to enhance the unique cylinder head layout of the Milwaukee-Eight® engine, the RS548 will get a Touring Model accelerating very quickly!

The RS548 can be used in SE and Aftermarket big bore engine kits including 124, 128, and 131.  Requires special valve springs, SE valve springs are not compatible must be replaced to use this cam.

Check the RS Cam Matrix for data or contact Zipper’s for advice on valve spring options to match with your rocker ratio.

  • Requires Special Valve Springs
  • Requires Adjustable or use Stock Length Pushrods
  • Available in chain drive only
  • Performance tappets recommended with any cam change

 Compliance with ARB emissions laws, this product is not sold or shipped to California.




This product is not for sale or use on pollution controlled vehicles.

Weight 1 lbs

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