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S&S 520 Cam For Harley Big Twin Evo 1984-1999
  • S&S 520 Cam For Harley Big Twin Evo 1984-1999

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Video Reviews (2)

S&S 520 Cam For Harley Big Twin Evo 1984-1999 Videos

This product is legal in California only for racing vehicles which may never be used, registered or licensed for use upon a highway.

S&S Cycle 520 Camshaft For Harley Big Twin Evo

S&S has been in the business of making Harley-Davidson motorcycles go fast for a very long time, and their innovation in the world of bumpsticks is not exactly a secret. If you're looking for more power from your bike, a cam is a wonderful place to start - especially if you've already done most of the easy 'bolt-on' modifications. Installing an S&S cam is a surefire way to make your mill suit your riding style while getting maximum output.


  • S&S cams are tested on the dyno, street and track before being offered to the public
  • With hundreds of hours of testing on each cam, you know you are getting the best cam S&S can produce
  • Made in the USA

520 Cam Info:

  • Works well in all size motors up to 10:1 compression
  • Short-duration emissions cam with very little overlap to reduce unburned hydrocarbons
  • Makes best power in low to mid-range
  • 1000 RPM-4500 RPM
  • Intake open/close 0°/40°
  • Exhaust open/close 50°/2°
  • Intake duration 220°
  • Exhaust duration 232°
  • Lift .520"


Fitment Notes & Exceptions

  • Installer must check for coil bind, valve-to-valve clearance, valve-to-piston clearance, and cam lobe to case clearance
  • Cam bearings and gaskets must be replaced when installing new cams
  • Works with hydraulic lifters
  • High-lift valve springs are required to run this cam in all models
This Product Fits:
Harley Davidson
Bad Boy FXSTSB 1995, 1996, 1997
Disc Glide FXRDG 1984
Dyna Convertible FXDS 19941999
Dyna Glide Daytona FXDB-D 1992
Dyna Glide Sturgis FXDB-S 1991
Dyna Low Rider FXDL/I 19931997, 1999
Dyna Super Glide FXD/I 1995, 1996, 1997, 1998, 1999
Dyna Super Glide Sport FXDX 1999
Dyna Wide Glide FXDWG/I 19931999
Electra Glide Classic FLHTC/I 19841998
Electra Glide Special FLHX 1984
Electra Glide Sport FLHS 1984, 19871993
Electra Glide Standard FLHT/I 19841998
Electra Glide Ultra Classic FLHTCU/I 19871998
Fat Bob FXEF 1985
Fat Boy FLSTF/I 19901999
FLH 1984, 1985
Heritage Softail Classic FLSTC/I 19861999
Heritage Softail FLST/I 1986, 1987, 1988, 1989, 1990
Heritage Springer FLSTS/I 1997, 1998, 1999
Low Glide/Low Rider FXRS 19841993
Low Rider Chrome FXRC 1985, 1986, 1987, 1988
Low Rider Custom FXLR 19861994
Low Rider Sport FXRS-SP 19871993
Night Train FXSTB/I 1999
Road Glide FLTR/I 1998
Road King Classic FLHRC/I 1994, 1995, 1996, 1997, 1998
Road King Custom FLHRS/I 1995, 1996, 1997, 1998
Road King FLHR/I 1994, 1995, 1996, 1997, 1998
Softail Custom FXSTC/I 19861999
Softail Custom/Nostalgia/Special/Deluxe FLSTN/I 1993, 1994, 1995, 1996
Softail Deuce FXSTD/I 1999
Softail Standard FXST/I 19841999
Sport Glide FXRT 19841992
Sport Glide Grand Touring FXRD 1986
Springer Softail FXSTS/I 19881999
Super Glide FXE 1984, 1985
Tour Glide Classic FLTC/I 19841991
Tour Glide FLT 19841991
Tour Glide Ultra Classic FLTCU/I 19891995
Wide Glide FXWG 1984, 1985, 1986
Product Style RevZilla Item # Manufacturer Product # Availability
S&S 520 Cam For Harley Big Twin Evo 1984-1999 959716 33-5073 Available: Expect 1-2 business days lead time prior to shipment


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S&S 520 Cam For Harley Big Twin Evo 1984-1999
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