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Note:

Not for models with OEM compression releases; Accept OE rocker boxes.

Features

High port flow gives great performance now, and more later when additional upgrades are done
Heads are fully assembled with springs and valves
Compression ratios vary depending on cylinder heads chosen, pistons used and engine displacement; see Compression Ratios chart for specifications
79cc heads work great with stock motors for 88" to 103" motors; 89cc heads work best for motors over 103" or with high-compression pop-up pistons
79cc have 1.940" intake and 1.575" exhaust valve and springs for up to .640" lift; 89cc have 2.000" intake and 1.605" exhaust and .640" springs
Heads are machined for compression releases unless noted otherwise (sold separately); S&S rocker boxes required when using S&S compression releases
Do not include rocker arm components, intake manifold or gaskets
Heads include four long headbolts, and reuse four long OEM headbolts
Accept OEM intake manifolds
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.

Specs

Product Name	Cylinder Head Kit
Model	Super Stock
Color/Finish	Powder-Coated / Wrinkle Black
Material	Aluminum
Displacement	89 cc
Units	Pair
Riding Style	Street

2006	Harley-Davidson	Dyna Wide Glide FXDWGI
2006-2017	Harley-Davidson	Street Bob FXDB
2006	Harley-Davidson	Super Glide Custom FXDCI
2006	Harley-Davidson	Super Glide FXDI
2007-2009,2015-2017	Harley-Davidson	Dyna Low Rider FXDL
2007-2008,2010-2017	Harley-Davidson	Dyna Wide Glide FXDWG
2007-2013	Harley-Davidson	Electra Glide Classic FLHTC
2007-2009	Harley-Davidson	Electra Glide Standard FLHT
2007-2016	Harley-Davidson	Electra Glide Ultra Classic FLHTCU
2007-2010,2016	Harley-Davidson	Road Glide FLTR
2007-2013	Harley-Davidson	Road King Classic FLHRC
2007	Harley-Davidson	Road King Custom FLHRS
2007-2016	Harley-Davidson	Road King FLHR
2007-2010	Harley-Davidson	Softail Custom FXSTC
2007-2017	Harley-Davidson	Softail Deluxe FLSTN
2007	Harley-Davidson	Softail Deuce FXSTD
2007-2017	Harley-Davidson	Softail Fat Boy FLSTF
2007-2017	Harley-Davidson	Softail Heritage Classic FLSTC
2007-2009	Harley-Davidson	Softail Night Train FXSTB
2007	Harley-Davidson	Softail Springer Classic FLSTSC
2007	Harley-Davidson	Softail Standard FXST
2007-2016	Harley-Davidson	Street Glide FLHX/FLHXS
2007-2014	Harley-Davidson	Super Glide Custom FXDC
2007-2010	Harley-Davidson	Super Glide FXD
2008-2016	Harley-Davidson	Electra Glide Police FLHTPI
2008-2017	Harley-Davidson	Fat Bob FXDF
2008	Harley-Davidson	Screamin' Eagle Electra Glide Ultra Classic FLHTCUSE3
2008	Harley-Davidson	Screamin' Eagle Road King FLHRSE4
2008-2011	Harley-Davidson	Softail Cross Bones FLSTSB
2008-2011	Harley-Davidson	Softail Rocker C FXCWC
2008-2009	Harley-Davidson	Softail Rocker FXCW
2009	Harley-Davidson	CVO Road Glide FLTRSE3
2009	Harley-Davidson	CVO Ultra Classic Electra Glide FLHTCUSE4
2010,2015-2016	Harley-Davidson	CVO Street Glide FLHXSE
2010	Harley-Davidson	CVO Ultra Classic Electra Glide FLHTCUSE5
2010-2016	Harley-Davidson	Electra Glide Ultra Limited FLHTK
2010-2016	Harley-Davidson	Softail Fat Boy Lo FLSTFB
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 Ultra Classic Electra Glide FLHTCUSE6
2011-2013,2015-2016	Harley-Davidson	Road Glide FLTRX/FLTRXS
2011-2013,2016	Harley-Davidson	Road Glide Ultra FLTRU
2012	Harley-Davidson	CVO Road Glide FLTRXSE
2012	Harley-Davidson	CVO Street Glide FLHXSE3
2012	Harley-Davidson	CVO Ultra Classic Electra Glide FLHTCUSE7
2012-2017	Harley-Davidson	Softail Slim FLS
2012-2016	Harley-Davidson	Switchback FLD
2013-2017	Harley-Davidson	Breakout FXSB
2013	Harley-Davidson	CVO Road Glide FLTRXSE2
2013	Harley-Davidson	CVO Road King FLHRSE5
2013	Harley-Davidson	CVO Ultra Classic Electra Glide FLHTCUSE8
2014-2016	Harley-Davidson	CVO Electra Glide Ultra Limited FLHTKSE
2014	Harley-Davidson	CVO Road King FLHRSE
2014-2016	Harley-Davidson	Electra Glide Ultra Classic Low FLHTCUL
2015-2016	Harley-Davidson	Electra Glide Ultra Limited Low FLHTKL

Fitment Disclosure

This quick reference fitment information is provided to direct you to our catalog information and the manufacturer's information. Consult manufacturer publication(s) and/or website(s) for specific fitment and application information and other important information. This fitment information is based upon the stock version of the motorcycle or unit referenced and any accessory added or other modification could invalidate the quick reference information provided.