590C Chain Drive Camshaft Kit for 2017-Up M8 Models
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590C Chain Drive Camshaft Kit for 2017-Up M8 Models

Item #: 330-0730
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The 590C cam was designed as an all out Horsepower Cam for 124 and larger engines. Big lift lets your big mill breathe high into the RPM range!


  • S&S 590 Cam - Designed for massive horsepower in 124 and larger engines
  • 590 cam powerband is weighted to top end performance, peaking past the redline of a stock motor.
  • Includes all gaskets, bearings, and hardware required for installation

Required for installation:

  • This cam requires Adjustable Pushrods and Heavy Duty Valve Springs. We recommend:
    • 930-0123 Quickee Adjustable Pushrods with Cover Keepers for 2017-up M8 Models
    • 900-0958 Heavy Duty Valve Spring kit for 2017-up M8 Touring Models


  • 330-0718 Precision Tappet Set Without HL2T Kit For 1999-'17 HD Big Twins, 2000-'20 HD® Sportster®, and 2017-up M8 Models (Tappets should be replaced every time that the cam is replaced)
  • 330-0655 Tappet Cuffs for M8 Models

S&S® Camshaft Specifications

Cam Cylinder Valve Timing Valve Duration Valve Lift Lobe Center Line Valve Lift @ TDC
Intake Exhaust Intake Exhaust Intake Exhaust Intake Exhaust Intake Exhaust
Open BTDC/ Close ABDC Open BBDC/ Close ATDC
590 Front 15.6/43.7 64.8/21.2 239.4 266.1 0.59 0.59 104.1 111.7 0.165 0.186
Rear 20.2/53.6 62.7/15.7 253.9 258.4 0.59 0.59 106.7 113.5 0.186 0.158

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Disclaimer NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. Not legal for sale or use on any EPA pollution controlled motor vehicle.