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S&S Cycle 551 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:

  • Available in chain drive and gear drive versions
  • All chain drive cams include installation kit
  • All gear drive cams include 4-gear set and installation kit
  • Made in the USA

551 Cam Info:

  • Originally designed as a bolt-in, high-torque cam for Touring bikes with compression ratios between 9:1 and 9:9
  • More power across the RPM range, with improved low and midrange torque
  • Strongest from 1000 RPM-4000 RPM
  • Can be used with stock valve springs, pushrods, and lifters; '99-'04 models require high-lift valve springs
  • Intake open/close 17°/19°
  • Exhaust open/close 41°/17°
  • Intake duration 216°
  • Exhaust duration 238°
  • Lift .550"
Product Style RevZilla Item # Store Sku MFR. Product # Availability
Product Style Chain Drive Cams RevZilla Item #959511 Store Sku MFR. Product #330-0002 AvailabilityIn Stock: Ships within 24 hours
Product Style Gear Drive Cams RevZilla Item #959512 Store Sku MFR. Product #330-0100 AvailabilityIn Stock: Ships within 24 hours

This product DOES NOT FIT your 2011 Beta EVO 80 JR

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
  • For installation of chain-drive kit on 1999 Twin Cam motors, you must purchase a splined outer drive sprocket
  • High-lift valve springs are required to run these cams on 1999-2004 models and may be required for other applications
This Product Fits
Harley Davidson
Dyna Convertible FXDS 1999, 2000
Dyna Low Rider FXDL/I 1999-2005
Dyna Super Glide Custom FXDC/I 2005
Dyna Super Glide FXD/I 1999-2005
Dyna Super Glide Sport FXDX 1999-2005
Dyna Super Glide Sport Touring FXDXT 2001, 2002, 2003
Dyna Wide Glide FXDWG/I 1999-2005
Electra Glide Classic FLHTC/I 1999-2006
Electra Glide Standard FLHT/I 1999-2006
Electra Glide Ultra Classic FLHTCU/I 1999-2006
Road Glide FLTR/I 1999-2006
Road King Classic FLHRC/I 1999-2006
Road King Custom FLHRS/I 2004, 2005, 2006
Road King FLHR/I 1999-2006
Softail Deluxe FLSTN/I 2005, 2006
Softail Deuce FXSTD/I 2000-2006
Softail Fat Boy FLSTF/I 2000-2006
Softail Heritage Classic FLSTC/I 2000-2006
Softail Heritage FLST/I 2006
Softail Heritage Springer FLSTS/I 2000, 2001, 2002, 2003
Softail Night Train FXSTB/I 2000-2006
Softail Springer Classic FLSTSC/I 2005, 2006
Softail Springer FXSTS/I 2000-2006
Softail Standard FXST/I 2000-2006
Street Glide FLHX/I 2006
This item is also available for 44 different vehicles. View All Models
Harley Davidson
Dyna Fat Bob FXDF 2008-2017
Dyna Low Rider FXDL/I 2006-2017
Dyna Low Rider S FXDLS 2016-2017
Dyna Street Bob FXDB/I 2006-2017
Dyna Super Glide Custom FXDC/I 2006-2014
Dyna Super Glide FXD/I 2006-2010
Dyna Switchback FLD 2012-2016
Dyna Wide Glide FXDWG/I 2006-2017
Electra Glide Classic FLHTC/I 2007-2013
Electra Glide Standard FLHT/I 2007-2009
Electra Glide Ultra Classic FLHTCU/I 2007-2016
Electra Glide Ultra Classic Low FLHTCUL 2015-2016
Electra Glide Ultra Limited FLHTK 2010-2016
Electra Glide Ultra Limited Low FLHTKL 2015-2016
Freewheeler FLRT 2015-2016
Road Glide Custom FLTRX 2010-2013
Road Glide FLTR/I 2007-2009
Road Glide FLTRX 2015-2016
Road Glide Special FLTRXS 2015-2016
Road Glide Ultra FLTRU 2011-2016
Road King Classic FLHRC/I 2007-2013
Road King Custom FLHRS/I 2007
Road King FLHR/I 2007-2016
Softail Blackline FXS 2011-2013
Softail Breakout FXSB 2013-2017
Softail Cross Bones Springer FLSTSB 2008-2011
Softail Custom FXSTC/I 2007-2010
Softail Deluxe FLSTN/I 2007-2017
Softail Deuce FXSTD/I 2007
Softail Fat Boy FLSTF/I 2007-2017
Softail Fat Boy Lo FLSTFB 2010-2016
Softail Fat Boy S FLSTFBS 2016-2017
Softail Heritage Classic FLSTC/I 2007-2017
Softail Night Train FXSTB/I 2007-2009
Softail Rocker C FXCWC 2007-2011
Softail Rocker FXCW 2008-2011
Softail Slim FLS 2012-2017
Softail Slim S FLSS 2016-2017
Softail Springer Classic FLSTSC/I 2007
Softail Standard FXST/I 2007-2012
Street Glide FLHX/I 2007-2016
Street Glide Special FLHXS 2014-2016
Street Glide Trike FLHXXX 2010-2011
Tri Glide Ultra Classic FLHTCUTG 2009-2016

S&S Cycle 551 Cam Kit For Harley Twin Cam 1999-2006 Installation

Product Description
Part Numbers
Fitment
Installation
5 Customer Reviews
5 5/5
6 Questions & 5 Answers
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