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S&S 640 Cam Kit For Harley Twin Cam 2006-2015
  • S&S 640 Cam Kit For Harley Twin Cam 2006-2015 - Gear Drive Cams

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Video Reviews (2)

S&S 640 Cam Kit For Harley Twin Cam 2006-2015 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 640 Camshaft Kit For Harley Twin Cam

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.


  • Only available in gear drive version
  • Gear drive cams include 4-gear set and installation kit
  • Made in the USA

640 Cam Info:

  • Designed for S&S T124 engines - This cam makes horsepower!
  • Intended for 95"-110" engines with compression ratios between 10.5:1 and 11.5:1
  • Strongest from 3000 RPM-6000 RPM
  • Comparable to Screamin' Eagle SE-264 and Andrews 59H cams
  • High-lift valve springs required for all applications
  • Intake open/close 25°/60°
  • Exhaust open/close 65°/25°
  • Intake duration 265°
  • Exhaust duration 270°
  • Lift .640"

Fitment Notes & Exceptions

  • Installer must check for coil bind, valve-to-valve clearance, and valve-to-piston clearance
  • Cam bearings and gaskets must be replaced when installing new cams
  • High-lift valve springs are required to run these cams in all models
This Product Fits:
Harley Davidson
Breakout FXSB 2013, 2014, 2015, 2016
Cross Bones FLSTSB 2008, 2009, 2010, 2011
Dyna Low Rider FXDL/I 20062009, 20142016
Dyna Super Glide FXD/I 2006, 2007, 2008, 2009, 2010
Dyna Wide Glide FXDWG/I 20062016
Electra Glide Classic FLHTC/I 20072013
Electra Glide Standard FLHT/I 2007, 2008, 2009
Electra Glide Ultra Classic FLHTCU/I 20072016
Electra Glide Ultra Classic Low FLHTCUL 2015, 2016
Electra Glide Ultra Limited FLHTK 20102016
Electra Glide Ultra Limited Low FLHTKL 2015, 2016
Fat Bob FXDF 20082016
Fat Boy FLSTF/I 20072016
Fat Boy Lo FLSTFB 20092016
Fat Boy S FLSTFBS 2016
Freewheeler FLRT 2015, 2016
Heritage Softail Classic FLSTC/I 20072016
Night Train FXSTB/I 2007, 2008, 2009
Road Glide Custom FLTRX 2010, 2011, 2012, 2013
Road Glide FLTR/I 2007, 2008, 2009
Road Glide FLTRX 2015, 2016
Road Glide Special FLTRXS 2015, 2016
Road Glide Ultra FLTRU 2011, 2012, 2013, 2016
Road King Classic FLHRC/I 20072013
Road King Custom FLHRS/I 20072012
Road King FLHR/I 20072016
Rocker C FXCWC 2007, 2008, 2009, 2010, 2011
Rocker FXCW 2008, 2009, 2010, 2011
Softail Blackline FXS 2011, 2012, 2013
Softail Custom FXSTC/I 2007, 2008, 2009, 2010
Softail Custom/Nostalgia/Special/Deluxe FLSTN/I 20072016
Softail Deuce FXSTD/I 2007
Softail Slim FLS 2012, 2013, 2014, 2015, 2016
Softail Slim S FLSS 2016
Softail Springer Classic FLSTSC/I 2007
Softail Standard FXST/I 20072012
Street Bob FXDB/I 20062016
Street Glide FLHX/I 20072016
Street Glide Special FLHXS 2014, 2015, 2016
Street Glide Trike FLHXXX 2010, 2011
Super Glide Custom FXDC/I 20062014
Switchback FLD 2012, 2013, 2014, 2015, 2016
Tri Glide Ultra Classic FLHTCUTG 20092016
Product Style RevZilla Item # Manufacturer Product # Availability
Gear Drive Cams 959694 33-5270 Available: Expect 3-4 business days lead time prior to shipment


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S&S 640 Cam Kit For Harley Twin Cam 2006-2015
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