S&S Cycle 90-1106 Super Stock 89cc Cylinder Head Kit - .640in. Lift Springs - Winkle Black

Compression release machining Must use S&S rocker boxes (PART #90-4110) if S&S compression releases are used.

High port flow gives great performance now, and more later when additional upgrades are done. Heads are fully assembled with springs and valves, and are available in silver or black powder-coat finish to match OEM components. Compression ratios vary depending on cylinder heads chosen, pistons used and engine displacement. Heads are machined for compression releases (sold separately); S&S rocker boxes required when using S&S compression releases. Do not include rocker arm components, intake manifold, gaskets or headbolts (requires eight long OEM length head bolts). Accept OEM intake manifolds. Sold in pairs. Made in the USA.

Vehicle Fitment:

1999-2005 Harley Davidson FLHR Road King
1999-2005 Harley Davidson FLHRCI Road King Classic
2000-2005 Harley Davidson FLHRI Road King
2004-2005 Harley Davidson FLHRS Road King Custom
2004-2005 Harley Davidson FLHRSI Road King Custom
1999-2005 Harley Davidson FLHT Electra Glide Standard
1999-2005 Harley Davidson FLHTC Electra Glide Classic
1999-2005 Harley Davidson FLHTCI Electra Glide Classic
1999-2005 Harley Davidson FLHTCUI Electra Glide Ultra Classic
2003-2005 Harley Davidson FLHTI Electra Glide Standard
2000-2005 Harley Davidson FLSTC Heritage Softail Classic
2001-2005 Harley Davidson FLSTCI Heritage Softail Classic
2000-2005 Harley Davidson FLSTF Fat Boy
2001-2005 Harley Davidson FLSTFI Fat Boy
2005 Harley Davidson FLSTN Softail Deluxe
2005 Harley Davidson FLSTNI Softail Deluxe
2000-2003 Harley Davidson FLSTS Heritage Springer
2005 Harley Davidson FLSTSC Softail Springer Classic
2005 Harley Davidson FLSTSCI Softail Springer Classic
2001-2003 Harley Davidson FLSTSI Heritage Springer
1999-2002 Harley Davidson FLTR Road Glide
1999-2005 Harley Davidson FLTRI Road Glide
1999-2005 Harley Davidson FXD Dyna Super Glide
2005 Harley Davidson FXDC Super Glide Custom
2005 Harley Davidson FXDCI Super Glide Custom
2004-2005 Harley Davidson FXDI Dyna Super Glide
1999-2005 Harley Davidson FXDL Dyna Low Rider
2004-2005 Harley Davidson FXDLI Dyna Low Rider
1999-2000 Harley Davidson FXDS-Conv Dyna Convertible
1999-2005 Harley Davidson FXDWG Dyna Wide Glide
2004-2005 Harley Davidson FXDWGI Dyna Wide Glide
1999-2005 Harley Davidson FXDX Dyna Super Glide Sport
2004-2005 Harley Davidson FXDXI Dyna Super Glide Sport
2001-2003 Harley Davidson FXDXT Dyna Super Glide T-Sport
2000-2005 Harley Davidson FXST Softail Standard
2000-2005 Harley Davidson FXSTB Night Train
2001-2005 Harley Davidson FXSTBI Night Train
2000-2005 Harley Davidson FXSTD Softail Deuce
2001-2005 Harley Davidson FXSTDI Softail Deuce
2001-2005 Harley Davidson FXSTI Softail Standard
2000-2005 Harley Davidson FXSTS Springer Softail
2001-2005 Harley Davidson FXSTSI Springer Softail