S&S Cycle - 4" Sidewinder Big Bore Kit for 2007-2017 HD Big Twin Models - Silver

Inspired by S&S Cycle Pro Stock Drag Race engines, these updated big bore kit utilizes a ductile cast iron liner wrapped in cast aluminum for optimum thermal conductivity and performance. Bolt-in kits do not require machining, rebalancing or engine removal, and include just about everything you'll need to complete the installation. The biggest cylinder bore that can be installed in a stock crankcase without machining! Features: Low friction ductile cast iron liner 10.5:1 compression Bolts in. No machining, balancing, or splitting the crankcases 96" and 103" engines are boosted to 110" Complete kits include cylinders, pistons, gaskets, and instructions YEAR MAKE MODEL 2011 - 2013 Harley-Davidson Blackline - FXS 2013 - 2017 Harley-Davidson Breakout (EFI) FXSB 2008 - 2011 Harley-Davidson Cross Bones (EFI) - FLSTSB 2007 - 2017 Harley-Davidson Deluxe (EFI) - FLSTN 2007 Harley-Davidson Deuce (EFI) - FXSTD 2008 - 2017 Harley-Davidson Dyna Fat Bob (EFI) - FXDF 2007 - 2009 Harley-Davidson Dyna Low Rider (EFI) - FXDL 2014 Harley-Davidson Dyna Low Rider (EFI) - FXDL 2015 - 2017 Harley-Davidson Dyna Low Rider (EFI) -FXDL 2016 - 2017 Harley-Davidson Dyna Low Rider Sport - FXDLS 2007 - 2017 Harley-Davidson Dyna Street Bob (EFI) - FXDB 2007 - 2010 Harley-Davidson Dyna Super Glide (EFI) - FXD 2007 - 2014 Harley-Davidson Dyna Super Glide Custom (EFI) - FXDC 2012 - 2016 Harley-Davidson Dyna Switchback - FLD 2007 - 2008 Harley-Davidson Dyna Wide Glide (EFI) - FXDWG 2010 - 2017 Harley-Davidson Dyna Wide Glide (EFI) - FXDWG 2007 - 2013 Harley-Davidson Electra Glide Classic (EFI) - FLHTC 2007 - 2009 Harley-Davidson Electra Glide Standard (EFI) - FLHT 2007 - 2016 Harley-Davidson Electra Glide Ultra Classic (EFI) - FLHTCU 2015 - 2016 Harley-Davidson Electra Glide Ultra Classic Low - FLHTCUL 2010 - 2016 Harley-Davidson Electra Glide Ultra Limited - FLHTK 2007 - 2017 Harley-Davidson Fat Boy (EFI) - FLSTF 2010 - 2016 Harley-Davidson Fat Boy Lo - FLSTFB 2016 - 2017 Harley-Davidson Fatboy S - FLSTFBS 2012 - 2017 Harley-Davidson FLS Slim 2015 - 2016 Harley-Davidson Freewheeler-FLRT 2007 - 2017 Harley-Davidson Heritage Classic (EFI) - FLSTC 2007 - 2009 Harley-Davidson Road Glide (EFI) - FLTR 2010 - 2013 Harley-Davidson Road Glide Custom - FLTRX 2015 - 2016 Harley-Davidson Road Glide Custom - FLTRX 2015 - 2016 Harley-Davidson Road Glide Special - FLTRXS 2011 - 2013 Harley-Davidson Road Glide Ultra - FLTRU 2016 Harley-Davidson Road Glide Ultra - FLTRU 2007 - 2016 Harley-Davidson Road King (EFI) - FLHR 2007 - 2013 Harley-Davidson Road King Classic (EFI) - FLHRC 2007 Harley-Davidson Road King Custom (EFI) - FLHRS 2008 - 2009 Harley-Davidson Rocker (EFI) - FXCW 2008 - 2011 Harley-Davidson Rocker C (EFI) - FXCWC 2007 - 2010 Harley-Davidson Softail Custom (EFI) - FXSTC 2007 - 2009 Harley-Davidson Softail Night Train (EFI) - FXSTB 2016 - 2017 Harley-Davidson Softail Slim S - FLSS 2007 Harley-Davidson Softail Springer Classic (EFI) - FLSTSC 2007 Harley-Davidson Softail Standard (EFI) - FXST 2007 - 2016 Harley-Davidson Street Glide (EFI) - FLHX 2014 - 2016 Harley-Davidson Street Glide Special - FLHXS 2010 - 2011 Harley-Davidson Street Glide Trike - FLHXXX 2009 - 2016 Harley-Davidson Tri Glide Ultra Classic - FLHTCUTG 2015 - 2016 Harley-Davidson Ultra Limited Low - FLHTKL