This 124" big bore/stroker Hot Set Up Kit® transforms a stock engine into a 124" monster. This kit includes S&S 4-1/8" bore pistons, big bore cylinders finished in wrinkle black powder coat, a dynamically balanced 4-5/8" stroke three piece flywheel assembly complete with S&S heavy duty connecting rods and intergal mainshafts, S&S 640 gear drive Easy Start camshafts, S&S chromoly steel adjustable pushrods, S&S premium tappets,S&S Super Stock 91cc cylinder heads. When installed the kit yeilds a 124" engine with a compression ratio of 11:1. Although the engine is .960" taller than stock, there are no frame clearance problems, and a stock EFI Throttle body will fit because the manifold mounting surfaces of the heads have been specially machined to fit a stock length manifold. No fuel or ignition system is included. However, for the best results, a larger EFI throttle body, performance intake and performance exhaust are recommended. The EFI system must be recalibrated. Although not mandatory, we recommend adding an oil cooler to bikes ridden in warmer climates. S&S does not recommend compression ratios higher than 10:1 for Tri Glide® or other three wheel models (including conversions) due to extra loads caused by the lugging nature of these bikes. Detonation and subsequent engine damage may result.

This Part Fits:

Year	Make	Model	Submodel
2006-2017	Harley-Davidson	FLHR Road King	Base
2007-2013	Harley-Davidson	FLHRC Road King Classic	Base
2006-2007	Harley-Davidson	FLHRS Road King Custom	Base
2006-2009	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
2006-2017	Harley-Davidson	FLHX Street Glide	Base
2014-2017	Harley-Davidson	FLHXS Street Glide Special	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
2006-2017	Harley-Davidson	FLSTC Heritage Softail Classic	Base
2006-2017	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
2006-2010,2016	Harley-Davidson	FLTR Road Glide	Base
2011-2013,2016-2017	Harley-Davidson	FLTRU Road Glide Ultra	Base
2010-2013	Harley-Davidson	FLTRX Road Glide Custom	Base
2015-2017	Harley-Davidson	FLTRXS Road Glide Special	Base
2008-2009	Harley-Davidson	FXCW Rocker	Base
2008-2011	Harley-Davidson	FXCWC Rocker C	Base
2006-2010	Harley-Davidson	FXD Dyna Super Glide	Base
2007-2009,2014-2017	Harley-Davidson	FXDL Dyna Low Rider	Base
2006	Harley-Davidson	FXDLI Dyna Low Rider	Base
2006-2008,2010-2017	Harley-Davidson	FXDWG Dyna Wide Glide	Base
2006	Harley-Davidson	FXDWGI Dyna Wide Glide	Base
2011-2013	Harley-Davidson	FXS Blackline	Base
2006-2009	Harley-Davidson	FXSTB Night Train	Base
2007-2010	Harley-Davidson	FXSTC Softail Custom	Base
2006-2007	Harley-Davidson	FXSTD Softail Deuce	Base