This bolt-in big bore kit is easy to install, and requires no machining or rebalancing. This is the largest bore (3.937″) that can be fit in a stock engine case. Stock engine height is maintained so there are no manifold or frame fitment issues. The S&S 11 fin cylinder design closely resembles OEM shape and come prefinished – ready to install. Cylinders feature increased fin area for better heat dissipation, and the centrifugal cast, gray iron liner features 40,000 psi tensile strength for superior wear and performance. The pistons in this kit have a 3cc pop-up dome for slightly higher compression rato. This is one reason to choose and S&S 107″ kit over the S&S 106″ kit which has slightly less compression.

This Part Fits:

Year Make Model Submodel 2007-2017 Harley-Davidson FLHR Road King Base 2007-2013 Harley-Davidson FLHRC Road King Classic Base 2007 Harley-Davidson FLHRS Road King Custom Base 2007-2009 Harley-Davidson FLHT Electra Glide Standard Base 2007-2013 Harley-Davidson FLHTC Electra Glide Classic Base 2007-2017 Harley-Davidson FLHTCU Electra Glide Ultra Classic Base 2009-2013 Harley-Davidson FLHTCUTG Tri Glide Ultra Classic Base 2015-2017 Harley-Davidson FLHTKL Ultra Limited Low Base 2014-2017 Harley-Davidson FLHTKSE CVO Limited Base 2007-2017 Harley-Davidson FLHX Street Glide Base 2014-2017 Harley-Davidson FLHXS Street Glide Special Base 2010,2015-2017 Harley-Davidson FLHXSE CVO Street Glide Base 2010-2011 Harley-Davidson FLHXXX Street Glide Trike Base 2015-2017 Harley-Davidson FLRT Freewheeler Base 2016-2017 Harley-Davidson FLSS Softail Slim S Base 2007-2017 Harley-Davidson FLSTC Heritage Softail Classic Base 2007-2017 Harley-Davidson FLSTF Fat Boy Base 2010-2017 Harley-Davidson FLSTFB Fat Boy Lo Base 2016-2017 Harley-Davidson FLSTFBS Fat Boy S Base 2008-2011 Harley-Davidson FLSTSB Cross Bones Base 2010 Harley-Davidson FLSTSE CVO Softail Convertible Base 2007-2010,2016 Harley-Davidson FLTR Road Glide Base 2011-2013,2016-2017 Harley-Davidson FLTRU Road Glide Ultra Base 2011,2015-2016 Harley-Davidson FLTRUSE CVO Road Glide Ultra Base 2015-2017 Harley-Davidson FLTRX Road Glide Base 2010-2013 Harley-Davidson FLTRX Road Glide Custom Base 2015-2017 Harley-Davidson FLTRXS Road Glide Special Base 2012 Harley-Davidson FLTRXSE CVO Road Glide Custom Base 2008-2009 Harley-Davidson FXCW Rocker Base 2008-2011 Harley-Davidson FXCWC Rocker C Base 2007-2010 Harley-Davidson FXD Dyna Super Glide Base 2007-2009,2014-2017 Harley-Davidson FXDL Dyna Low Rider Base 2007-2008,2010-2017 Harley-Davidson FXDWG Dyna Wide Glide Base 2011-2013 Harley-Davidson FXS Blackline Base 2013-2014 Harley-Davidson FXSBSE CVO Breakout Base 2007-2009 Harley-Davidson FXSTB Night Train Base 2007-2010 Harley-Davidson FXSTC Softail Custom Base 2007 Harley-Davidson FXSTD Softail Deuce Base 2007 Harley-Davidson FXSTSSE Screamin Eagle Softail Springer Base 2009 Harley-Davidson FXSTSSE3 CVO Softail Springer Base