S&S Cycle 07-17 BT 107in Bolt-In Big Bore Kit – Wrinkle Black

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.

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