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S&S 640 Cam Kit For Harley Twin Cam 2006-2014
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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.

Features:

  • 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"

Resources:

View Fitment Notes & Exceptions

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
Cross Bones FLSTSB 2008, 2009, 2010, 2011
Dyna Low Rider FXDL/I 2006, 2007, 2008, 2009, 2014
Dyna Super Glide FXD/I 2006, 2007, 2008, 2009, 2010
Dyna Wide Glide FXDWG/I 20062014
Electra Glide Classic FLHTC/I 20072013
Electra Glide Standard FLHT/I 2007, 2008, 2009
Electra Glide Ultra Classic FLHTCU/I 20072014
Electra Glide Ultra Limited FLHTK 2010, 2011, 2012, 2013, 2014
Fat Bob FXDF 20082014
Fat Boy FLSTF/I 20072014
Fat Boy Lo FLSTFB 20092014
Heritage Softail Classic FLSTC/I 20072014
Night Train FXSTB/I 2007, 2008, 2009
Road Glide Custom FLTRX 2010, 2011, 2012, 2013
Road Glide FLTR/I 2007, 2008, 2009
Road Glide Ultra FLTRU 2011, 2012, 2013
Road King Classic FLHRC/I 20072013
Road King Custom FLHRS/I 20072012
Road King FLHR/I 20072014
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 20072014
Softail Deuce FXSTD/I 2007
Softail Slim FLS 2012, 2013, 2014
Softail Springer Classic FLSTSC/I 2007
Softail Standard FXST/I 20072012
Street Bob FXDB/I 20062014
Street Glide FLHX/I 20072014
Street Glide Special FLHXS 2014
Street Glide Trike FLHXXX 2010, 2011
Super Glide Custom FXDC/I 20062014
Switchback FLD 2012, 2013, 2014
Tri Glide Ultra Classic FLHTCUTG 20092014
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S&S 640 Cam Kit For Harley Twin Cam 2006-2014
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Product Style RevZilla Item # Manufacturer Product # Availability
Gear Drive Cams 959694 335270 Out of Stock