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S&S Cycle 557 EZ Easy Start Camshaft Kit For Harley Twin Cam
If you've put together a hot bike - or if reliability is paramount - an S&S Easy Start Cam Kit should be on your list. Don't bother fooling with compression releases or massive-output batteries and super-high-buck starters. S&S designed the Easy Start cams with performance in mind, but then revamped the design to give you great power on a cam that starts easier than a dirtbike. At the center of the cam lives a centrifugally retracted, spring loaded compression release lobe milled into the heel of each exhaust lobe. At cranking speeds, the lobe bumps the exhaust valve open slightly during the compression stroke, making the engine much easier to turn over. Once the engine fires and reaches 800 RPM, the lobe swings out of the tappet roller path, allowing the engine to run normally and with full compression. Ain't technology great?
- 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
- Allows for easy start by initially reducing cranking 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
- All chain drive cams include installation kit
- All gear drive cams include 4-gear set and installation kit
- Made in the USA
557 Cam Info:
- Optimized for Tri-Glides 2009-2011 and heavy bikes needing lots of bottom and mid-range performance
- 557 has short duration to produce lots of torque
- Can be used with some engines with stock pushrods, springs and lifters; high-lift valve springs may be required for some applications
- Intake open/close 6°/27°
- Exhaust open/close 39°/12°
- Intake duration 212°
- Exhaust duration 231°
- Lift .557"
|Product Style||RevZilla Item #||MFR. Product #||Availability|
|Product Style Chain Drive Cams||RevZilla Item #959314||MFR. Product #330-0053||AvailabilityAvailable: Requires 1-3 business days of lead time prior to shipment|
|Product Style Gear Drive Cams||RevZilla Item #959315||MFR. Product #330-0057||AvailabilityAvailable: Requires 3-5 business days of lead time prior to shipment|
This Product Fits
- 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, 2007, 2008, 2009, 2010
- Dyna Switchback FLD 2012, 2013, 2014, 2015, 2016
- Dyna Wide Glide FXDWG/I 2006-2017
- Electra Glide Classic FLHTC/I 2007-2013
- Electra Glide Standard FLHT/I 2007, 2008, 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, 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 2007-2013
- Road King Custom FLHRS/I 2007-2012
- Road King FLHR/I 2007-2016
- Softail Blackline FXS 2011, 2012, 2013
- Softail Breakout FXSB 2013, 2014, 2015, 2016, 2017
- Softail Cross Bones Springer FLSTSB 2008, 2009, 2010, 2011
- Softail Custom FXSTC/I 2007, 2008, 2009, 2010
- Softail Custom/Nostalgia/Special/Deluxe FLSTN/I 2007-2017
- Softail Deuce FXSTD/I 2007
- Softail Fat Boy FLSTF/I 2007-2017
- Softail Fat Boy Lo FLSTFB 2009-2016
- Softail Fat Boy S FLSTFBS 2016, 2017
- Softail Heritage Classic FLSTC/I 2007-2017
- Softail Night Train FXSTB/I 2007, 2008, 2009
- Softail Rocker C FXCWC 2007, 2008, 2009, 2010, 2011
- Softail Rocker FXCW 2008, 2009, 2010, 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, 2015, 2016
- Street Glide Trike FLHXXX 2010, 2011
- Tri Glide Ultra Classic FLHTCUTG 2009-2016
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