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

SHIPPING POLICY Free shipping on domestic orders $75+ Please allow 2-4 business days for standard processing before your order ships RETURN POLICY On domestic orders, we offer 30-day free returns for store credit. For a refund back to the original payment method, a $6 return shipping fee will apply. Items marked final sale are not eligible for return. Products must be returned unworn, unwashed, in their original condition and with all tags and liners attached. We ask that you wear underwear when first trying-on your purchase, as we reserve the right to refuse returns that show any signs of wear.

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