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S&S Cycle EZ Start 583 Chain-Driven Cam

S&S Cycle EZ Start 583 Chain-Driven Cam

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  • Start any engine regardless of displacement or compression ratio with a stock starter
  • Save your starter and battery; tested for 10,000 starts without running battery down
  • Spring-loaded lobe in cam allows for easy start by initially reducing crank compression, but once the engine starts and rpm increases, the compression release lobe is centrifugally retracted and the engine runs normally, with full compression, and without any loss in performance
  • Available in chain drive and gear drive versions

583 EZ Cams

  • Optimized for use as a great overall cam for Softail and Dyna, but can be used in any Big Twin
  • Provides strong low-end torque and horsepower that you can really feel
  • Strongest from 1500-5000 rpm in a Softail and Dyna application
  • High lift springs required 


  • Open: 8 degree
  • Close: 15 degree
  • Duration @ .053 in.: 204 degree
  • Valve Lift: .583 in. 


  • Open: 60 degree
  • Close: 22 degree
  • Duration @ .053 in.: 262 degree
  • Valve Lift: .583 in.

NOTE: Not for models with OEM compression releases

Included Items

  • (2) Camshafts
  • (2) Cam bearings
  • (1) O-ring
  • (1) Cam cover gasket
  • (1) Snap ring
  • (1) .02 fluid oz. 262 loctite permanent threadlocker
  • (1) .02 fluid oz. 243 loctite medium threadlocker
  • Instructions

The Air Resources Board (ARB) does not permit the use of aftermarket emission-related parts that alter the air/fuel ratio of an emission-controlled vehicle. Due to these legal restrictions this part cannot be shipped to California.

BrandS&S Cycle
California Prop 65 Icon
California Prop 65
WARNING: Cancer and Reproductive Harm -

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