S&S CYCLE Cylinder Heads - Twin Cam

Fuel your engine's fire with the power of S&S CYCLE Cylinder Heads - Twin Cam 106-3227. With high port flow and fully assembled with springs and valves, these heads are ready for action. Take on any challenge and achieve greater performance, now and in the future as you make additional upgrades. Choose from various compression ratios, depending on your engine's specs and preferred cylinder heads. Ready for adventure and inspired to push the limits? The 79cc heads are perfect for stock motors from 88" to 103", while the 89cc heads are recommended for engines over 103" or with high-compression pop-up pistons. Don't let anything hold you back - the 79cc heads boast 1.940" intake and 1.575" exhaust valves and springs for up to .640" lift, while the 89cc heads feature 2.000" intake and 1.605" exhaust valves and .640" springs. Made in the U.S.A., Must use S&S rocker boxes (PART #90-4110) if S&S compression releases are used., Not compatible with Twin Cooled heads.

Welcome to Lifestyle Cycles, your aftermarket Harley Davidson Superstore! Whether you are looking for a helmet, gloves, handlebars or seat, Lifestyle Cycles has everything you need! Lifestyle offers more than just motorcycles, parts and accessories - we offer a complete immersive motorcycle culture combined with a customer experience equaled by none. Lifestyle Cycles also has an extensive selection of riding gear with our own Lifestyle Cycles branded products as well as all of your favorite brands. You will also find an extensive selection of parts and accessories from names you trust such as Saddlemen, Thrashin, Soundstream, LA Choppers, Legend Suspension and more. Lifestyle Cycles has everything you need to personalize your bike so you don't have just another "me too" Harley-Davidson. Our skilled experts who ride, test and "APPROVE" all of our products are here to guide you through the process to make your dream a reality. We have something for everyone including our California based Lifestyle Cycles Riding Group, with more than 4,200 members. See for yourself why Lifestyle Cycles is the number one online destination. We guarantee you will be impressed!

2015-2016 Harley-Davidson Electra Glide Ultra Limited Low FLHTKL
2015-2016 Harley-Davidson Road Glide Special FLTRXS
2014-2016 Harley-Davidson CVO Electra Glide Ultra Limited FLHTKSE
2014-2016 Harley-Davidson Electra Glide Ultra Classic Low FLHTCUL
2014-2016 Harley-Davidson Street Glide Special FLHXS
2014 Harley-Davidson CVO Road King FLHRSE
2013-2017 Harley-Davidson Breakout FXSB
2013 Harley-Davidson CVO Road King FLHRSE5
2013 Harley-Davidson CVO Road Glide Custom FLTRXSE2
2013 Harley-Davidson CVO Electra Glide Ultra Classic FLHTCUSE8
2012-2017 Harley-Davidson Softail Slim FLS
2012-2016 Harley-Davidson Switchback FLD
2012 Harley-Davidson CVO Street Glide FLHXSE3
2012 Harley-Davidson CVO Electra Glide Ultra Classic FLHTCUSE7
2012 Harley-Davidson CVO Road Glide Custom FLTRXSE
2011-2013, 2016 Harley-Davidson Road Glide Ultra FLTRU
2011-2013 Harley-Davidson Blackline FXS
2011, 2015-2016 Harley-Davidson CVO Road Glide Ultra FLTRUSE
2011 Harley-Davidson CVO Street Glide FLHXSE2
2011 Harley-Davidson CVO Electra Glide Ultra Classic FLHTCUSE6
2010-2016 Harley-Davidson Electra Glide Ultra Limited FLHTK
2010-2016 Harley-Davidson Fat Boy Lo FLSTFB
2010-2013, 2015-2016 Harley-Davidson Road Glide Custom FLTRX
2010, 2015-2016 Harley-Davidson CVO Street Glide FLHXSE
2010 Harley-Davidson CVO Electra Glide Ultra Classic FLHTCUSE5
2009-2013 Harley-Davidson Road King Classic FLHRC
2009 Harley-Davidson CVO Road Glide FLTRSE3
2009 Harley-Davidson CVO Electra Glide Ultra Classic FLHTCUSE4
2008-2017 Harley-Davidson Fat Bob FXDF
2008-2016 Harley-Davidson Electra Glide Police FLHTPI
2008-2011 Harley-Davidson Softail Rocker C FXCWC
2008-2011 Harley-Davidson Softail Cross Bones FLSTSB
2008-2009 Harley-Davidson Softail Rocker FXCW
2008 Harley-Davidson Screamin' Eagle Electra Glide Ultra Classic FLHTCUSE3
2008 Harley-Davidson Screamin' Eagle Road King FLHRSE4
2007-2017 Harley-Davidson Softail Fat Boy EFI FLSTFI
2007-2017 Harley-Davidson Softail Heritage Classic EFI FLSTCI
2007-2017 Harley-Davidson Softail Deluxe EFI FLSTNI
2007-2016 Harley-Davidson Road King EFI FLHR
2007-2016 Harley-Davidson Electra Glide Ultra Classic EFI FLHTCUI
2007-2016 Harley-Davidson Street Glide EFI FLHX
2007-2013 Harley-Davidson Road King Classic EFI FLHRC
2007-2013 Harley-Davidson Electra Glide Classic EFI FLHTCI
2007-2010 Harley-Davidson Softail Custom EFI FXSTC
2007-2009, 2015-2017 Harley-Davidson Low Rider EFI FXDL
2007-2009 Harley-Davidson Electra Glide Standard EFI FLHTI
2007-2009 Harley-Davidson Road Glide EFI FLTR
2007-2009 Harley-Davidson Softail Night Train EFI FXSTBI
2007 Harley-Davidson Softail Springer Classic EFI FLSTSCI
2007 Harley-Davidson Road King Custom EFI FLHRS
2007 Harley-Davidson Softail Deuce EFI FXSTDI
2007 Harley-Davidson Softail Standard EFI FXSTI
2006-2017 Harley-Davidson Street Bob FXDB
2006-2014 Harley-Davidson Super Glide Custom EFI FXDCI
2006-2010 Harley-Davidson Super Glide EFI FXDI
2006-2008, 2010-2017 Harley-Davidson Wide Glide EFI FXDWGI

Shipping Policy

At Lifestyle Cycles we want your experience with us to be that of pleasure and our service to be  equalled by none. Buying parts and accessories for your bike should be quick, simple and easy! We are also riders and builders! We know that you want your parts and accessories as soon as possible! 

Return Policy

At Lifestyle Cycles we want your experience with us to be that of pleasure and our service to be equalled by none. Buying parts and accessories for your bike should be quick, simple and easy! We are also riders and builders! We know that you may not be ready to install the parts and accessories right when you get them. With that in mind, we have a 60-day return policy, which means you have 60 days after receiving your item to request a return.

Read our full return policy here.

MPN: 106-3227