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551 cams are bolt-in cams. Cams that exceed the limits of the stock valve springs require the use of special high lift springs. Most S&S cams have higher lift than stock and are designed to take advantage of the extra flow of ported stock heads or S&S Super Stock heads. Due to the high lift of these cams, S&S adjustable pushrods are recommended. Not all grinds are available in the chain drive version. To get the best performance from a performance cam installation, a high flow intake and exhaust system is also recommended.
Designed for engines with 96 to 106 CID and 9:1 to 9:9 compression this is a bolt-in cam set designed for stock or mildly modified touring bikes. 551 cams are not recommended for compression ratios of 10:1 or greater. Greatly improves low-end and midrange torque, strongest from idle-4000 rpm.
Quick installation and Easy Start Cams allow stock starter to start any engine.
Kit contains cams, gear cover gasket, cam bearings, and instructions.
Made in the USA
Product Note:
Specification
Details
Country of Origin
USA
Drive Type
Chain Drive
Engine Type
Twin Cam
Exhaust Duration
238 degrees
Exhaust Lift
.170 in.
Exhaust Lobe Center
102 degrees
Exhaust Timing (Close)
17 degrees
Exhaust Timing (Open)
41 degrees
Intake Duration
216 degrees
Intake Lift
.178 in.
Intake Lobe Center
91 degrees
Intake Timing (Close)
19 degrees
Intake Timing (Open)
17 degrees
Valve Lift
.550 in.
Warranty
1 Year Manufacturer Warranty
Vehicle Fitment
Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.
Harley Davidson
FLHR Road King 1999-2006
FLHRCI Road King Classic 1999-2006
FLHRI Road King 1999-2006
FLHRS Road King Custom 2004-2006
FLHRSI Road King Custom 2004-2006
FLHT Electra Glide Standard 1999-2006
FLHTC Electra Glide Classic 1999-2005
FLHTCI Electra Glide Classic 1999-2006
FLHTCU Ultra Classic Electra Glide 1999-2006
FLHTCUI Ultra Classic Electra Glide 1999-2006
FLHTI Electra Glide Standard 2003-2006
FLHX Street Glide 2006
FLHXI Street Glide 2006
FLST Heritage Softail 2006
FLSTC Heritage Softail Classic 1999-2006
FLSTCI Heritage Softail Classic 2001-2006
FLSTF Softail Fat Boy 1999-2006
FLSTFI Softail Fat Boy 2001-2006
FLSTI Heritage Softail 2006
FLSTN Softail Deluxe 2005-2006
FLSTNI Softail Deluxe 2005-2006
FLSTS Heritage Springer Softail 1999-2003
FLSTSC Softail Springer Classic 2005-2006
FLSTSCI Softail Springer Classic 2005-2006
FLSTSI Heritage Springer Softail 2001-2003
FLTR Road Glide 1999-2002
FLTRI Road Glide 1999-2006
FXD Dyna Super Glide 1999-2005
FXDC Dyna Super Glide Custom 2005
FXDCI Dyna Super Glide Custom 2005
FXDI Dyna Super Glide 2004-2005
FXDL Dyna Low Rider 1999-2005
FXDLI Dyna Low Rider 2004-2005
FXDS-CONV Dyna Convertible 1999-2000
FXDWG Dyna Wide Glide 1999-2005
FXDWGI Dyna Wide Glide 2004-2005
FXDX Dyna Super Glide Sport 1999-2005
FXDXI Dyna Super Glide Sport 2004-2005
FXDXT Dyna Super Glide T-Sport 2001-2003
FXST Softail Standard 1999-2006
FXSTB Softail Night Train 1999-2006
FXSTBI Softail Night Train 2001-2006
FXSTC Softail Custom 1999
FXSTD Softail Deuce 2000-2006
FXSTDI Softail Deuce 2001-2006
FXSTI Softail Standard 2001-2006
FXSTS Springer Softail 1999-2006
FXSTSI Springer Softail 2001-2006
Customer Reviews
Quality
By Brian A. on
Verified Purchaser
A great product.
Great
By Steven S. on
Verified Purchaser
S&S great to deal with.
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