S&S Cycle 99-06 Easy Start 551CE Chain Drive Camshaft Kit

551 cams are bolt-in cams for 1999-'06 engines. 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
• 2005-'06 can use stock valve springs while 1999-'04 will need special valve springs
• Quick installation and Easy Start® Cams allow stock starter to start any engine
• Greatly improves low-end and midrange torque, strongest from idle-4000rpm
• 551 cams are not recommended for compression ratios of 10:1 or greater
• Kit contains cams, gearcover gasket, cam bearings, and instructions

Upgrade your Harley Davidson with the S&S Cycle 551CE Chain Drive Camshaft Kit, designed for models from 1999 to 2006. This bolt-in camshaft set enhances engine performance by increasing low-end and midrange torque, delivering noticeable power gains from idle up to 4000 rpm. The kit includes cams, gearcover gasket, cam bearings, and detailed instructions, making installation straightforward for experienced enthusiasts. The 551 cams are optimized for engines with 96 to 106 cubic inches and compression ratios between 9:1 and 9:9, suitable for stock or mildly modified touring bikes. These cams are engineered to work best with high-flow intake and exhaust systems, unlocking additional airflow to maximize performance. Most models from 2005-2006 can utilize stock valve springs, while earlier models require special high-lift springs to handle the increased lift. Due to their high lift profiles, S&S adjustable pushrods are recommended to ensure proper valve operation and longevity. The cams feature Quick Start® technology, allowing easier engine startups with the stock starter, and are specifically designed for chain drive applications. It’s important to note that these cams are not recommended for compression ratios of 10:1 or higher, as excessive compression can negatively impact performance. Appropriate for a range of Harley Davidson models including Fat Boy, Night Train, Softail Deuce, and Electra Glide, the S&S 551CE cams are a reliable upgrade for riders seeking improved torque and power across the midrange, with a focus on durability and ease of installation.

Features:

• Designed for engines with 96 to 106 cubic inches and 9:1 to 9:9 compression ratios, suitable for stock or mildly modified touring bikes

• Compatible with 2005-2006 models using stock valve springs; earlier models require high-lift springs

• Quick Start® technology allows easy engine startup with stock starter

• Enhances low-end and midrange torque, most effective from idle to 4000 rpm

• High-lift cams designed for ported stock heads or S&S Super Stock® heads, maximizing airflow

• Includes cams, gearcover gasket, cam bearings, and installation instructions for straightforward setup

• Recommended to use S&S adjustable pushrods due to high lift profile

• Not suitable for engines with compression ratios of 10:1 or greater

Fitment:
Harley Davidson FLHR Road King Base 1999
Harley Davidson FLHR Road King Base 2000
Harley Davidson FLHR Road King Base 2001
Harley Davidson FLHR Road King Base 2002
Harley Davidson FLHR Road King Base 2003
Harley Davidson FLHR Road King Base 2004
Harley Davidson FLHR Road King Base 2005
Harley Davidson FLHR Road King Base 2006
Harley Davidson FLHRCI Road King Classic Base 1999
Harley Davidson FLHRCI Road King Classic Base 2000
Harley Davidson FLHRCI Road King Classic Base 2001
Harley Davidson FLHRCI Road King Classic Base 2002
Harley Davidson FLHRCI Road King Classic Base 2003
Harley Davidson FLHRCI Road King Classic Base 2004
Harley Davidson FLHRCI Road King Classic Base 2005
Harley Davidson FLHRCI Road King Classic Base 2006
Harley Davidson FLHRI Road King Base 2000
Harley Davidson FLHRI Road King Base 2001
Harley Davidson FLHRI Road King Base 2002
Harley Davidson FLHRI Road King Base 2003
Harley Davidson FLHRI Road King Base 2004
Harley Davidson FLHRI Road King Base 2005
Harley Davidson FLHRI Road King Base 2006
Harley Davidson FLHRS Road King Custom Base 2004
Harley Davidson FLHRS Road King Custom Base 2005
Harley Davidson FLHRS Road King Custom Base 2006
Harley Davidson FLHT Electra Glide Standard Base 1999
Harley Davidson FLHT Electra Glide Standard Base 2000
Harley Davidson FLHT Electra Glide Standard Base 2003
Harley Davidson FLHT Electra Glide Standard Base 2006
Harley Davidson FLHTC Electra Glide Classic Base 1999
Harley Davidson FLHTC Electra Glide Classic Base 2000
Harley Davidson FLHTC Electra Glide Classic Base 2001
Harley Davidson FLHTC Electra Glide Classic Base 2002
Harley Davidson FLHTC Electra Glide Classic Base 2003
Harley Davidson FLHTC Electra Glide Classic Base 2004
Harley Davidson FLHTC Electra Glide Classic Base 2005
Harley Davidson FLHTCI Electra Glide Classic Base 1999
Harley Davidson FLHTCI Electra Glide Classic Base 2000
Harley Davidson FLHTCI Electra Glide Classic Base 2001
Harley Davidson FLHTCI Electra Glide Classic Base 2002
Harley Davidson FLHTCI Electra Glide Classic Base 2003
Harley Davidson FLHTCI Electra Glide Classic Base 2004
Harley Davidson FLHTCI Electra Glide Classic Base 2005
Harley Davidson FLHTCI Electra Glide Classic Base 2006
Harley Davidson FLHTCUI Electra Glide Ultra Classic Base 1999
Harley Davidson FLHTCUI Electra Glide Ultra Classic Base 2000
Harley Davidson FLHTCUI Electra Glide Ultra Classic Base 2001
Harley Davidson FLHTCUI Electra Glide Ultra Classic Base 2002
Harley Davidson FLHTCUI Electra Glide Ultra Classic Base 2003
Harley Davidson FLHTCUI Electra Glide Ultra Classic Base 2004
Harley Davidson FLHTCUI Electra Glide Ultra Classic Base 2005
Harley Davidson FLHTCUI Electra Glide Ultra Classic Base 2006
Harley Davidson FLHX Street Glide Base 2006
Harley Davidson FLST Heritage Softail Base 2006
Harley Davidson FLSTC Heritage Softail Classic Base 1999
Harley Davidson FLSTC Heritage Softail Classic Base 2000
Harley Davidson FLSTC Heritage Softail Classic Base 2001
Harley Davidson FLSTC Heritage Softail Classic Base 2002
Harley Davidson FLSTC Heritage Softail Classic Base 2003
Harley Davidson FLSTC Heritage Softail Classic Base 2004
Harley Davidson FLSTC Heritage Softail Classic Base 2005
Harley Davidson FLSTC Heritage Softail Classic Base 2006
Harley Davidson FLSTCI Heritage Softail Classic Base 2001
Harley Davidson FLSTCI Heritage Softail Classic Base 2002
Harley Davidson FLSTCI Heritage Softail Classic Base 2003
Harley Davidson FLSTCI Heritage Softail Classic Base 2004
Harley Davidson FLSTCI Heritage Softail Classic Base 2005
Harley Davidson FLSTCI Heritage Softail Classic Base 2006
Harley Davidson FLSTF Fat Boy Base 1999
Harley Davidson FLSTF Fat Boy Base 2000
Harley Davidson FLSTF Fat Boy Base 2001
Harley Davidson FLSTF Fat Boy Base 2002
Harley Davidson FLSTF Fat Boy Base 2003
Harley Davidson FLSTF Fat Boy Base 2004
Harley Davidson FLSTF Fat Boy Base 2005
Harley Davidson FLSTF Fat Boy Base 2006
Harley Davidson FLSTFI Fat Boy Base 2001
Harley Davidson FLSTFI Fat Boy Base 2002
Harley Davidson FLSTFI Fat Boy Base 2003
Harley Davidson FLSTFI Fat Boy Base 2004
Harley Davidson FLSTFI Fat Boy Base 2005
Harley Davidson FLSTFI Fat Boy Base 2006
Harley Davidson FLTR Road Glide Base 1999
Harley Davidson FLTR Road Glide Base 2000
Harley Davidson FLTR Road Glide Base 2001
Harley Davidson FLTR Road Glide Base 2002
Harley Davidson FLTR Road Glide Base 2003
Harley Davidson FLTR Road Glide Base 2004
Harley Davidson FLTR Road Glide Base 2005
Harley Davidson FLTR Road Glide Base 2006
Harley Davidson FLTRI Road Glide Base 1999
Harley Davidson FLTRI Road Glide Base 2000
Harley Davidson FLTRI Road Glide Base 2001
Harley Davidson FLTRI Road Glide Base 2002
Harley Davidson FLTRI Road Glide Base 2003
Harley Davidson FLTRI Road Glide Base 2004
Harley Davidson FLTRI Road Glide Base 2005
Harley Davidson FLTRI Road Glide Base 2006
Harley Davidson FXD Dyna Super Glide Base 1999
Harley Davidson FXD Dyna Super Glide Base 2000
Harley Davidson FXD Dyna Super Glide Base 2001
Harley Davidson FXD Dyna Super Glide Base 2002
Harley Davidson FXD Dyna Super Glide Base 2003
Harley Davidson FXD Dyna Super Glide Base 2004
Harley Davidson FXD Dyna Super Glide Base 2005
Harley Davidson FXD Dyna Super Glide Base 2006
Harley Davidson FXDL Dyna Low Rider Base 1999
Harley Davidson FXDL Dyna Low Rider Base 2000
Harley Davidson FXDL Dyna Low Rider Base 2001
Harley Davidson FXDL Dyna Low Rider Base 2002
Harley Davidson FXDL Dyna Low Rider Base 2003
Harley Davidson FXDL Dyna Low Rider Base 2004
Harley Davidson FXDL Dyna Low Rider Base 2005
Harley Davidson FXDLI Dyna Low Rider Base 2004
Harley Davidson FXDLI Dyna Low Rider Base 2005
Harley Davidson FXDLI Dyna Low Rider Base 2006
Harley Davidson FXDWG Dyna Wide Glide Base 1999
Harley Davidson FXDWG Dyna Wide Glide Base 2000
Harley Davidson FXDWG Dyna Wide Glide Base 2001
Harley Davidson FXDWG Dyna Wide Glide Base 2002
Harley Davidson FXDWG Dyna Wide Glide Base 2003
Harley Davidson FXDWG Dyna Wide Glide Base 2004
Harley Davidson FXDWG Dyna Wide Glide Base 2005
Harley Davidson FXDWG Dyna Wide Glide Base 2006
Harley Davidson FXDWGI Dyna Wide Glide Base 2004
Harley Davidson FXDWGI Dyna Wide Glide Base 2005
Harley Davidson FXDWGI Dyna Wide Glide Base 2006
Harley Davidson FXDX Dyna Super Glide Sport Base 1999
Harley Davidson FXDX Dyna Super Glide Sport Base 2000
Harley Davidson FXDX Dyna Super Glide Sport Base 2001
Harley Davidson FXDX Dyna Super Glide Sport Base 2002
Harley Davidson FXDX Dyna Super Glide Sport Base 2003
Harley Davidson FXDX Dyna Super Glide Sport Base 2004
Harley Davidson FXDX Dyna Super Glide Sport Base 2005
Harley Davidson FXDXT Dyna Super Glide T-Sport Base 2001
Harley Davidson FXDXT Dyna Super Glide T-Sport Base 2002
Harley Davidson FXDXT Dyna Super Glide T-Sport Base 2003
Harley Davidson FXSTBI Night Train Base 2001
Harley Davidson FXSTBI Night Train Base 2002
Harley Davidson FXSTBI Night Train Base 2003
Harley Davidson FXSTBI Night Train Base 2004
Harley Davidson FXSTBI Night Train Base 2005
Harley Davidson FXSTBI Night Train Base 2006
Harley Davidson FXSTD Softail Deuce Base 2000
Harley Davidson FXSTD Softail Deuce Base 2001
Harley Davidson FXSTD Softail Deuce Base 2002
Harley Davidson FXSTD Softail Deuce Base 2003
Harley Davidson FXSTD Softail Deuce Base 2004
Harley Davidson FXSTD Softail Deuce Base 2005
Harley Davidson FXSTD Softail Deuce Base 2006
Harley Davidson FXSTDI Softail Deuce Base 2001
Harley Davidson FXSTDI Softail Deuce Base 2002
Harley Davidson FXSTDI Softail Deuce Base 2003
Harley Davidson FXSTDI Softail Deuce Base 2004
Harley Davidson FXSTDI Softail Deuce Base 2005
Harley Davidson FXSTDI Softail Deuce Base 2006
Harley Davidson FXSTDSE Screamin Eagle Softail Deuce Base 2003
Harley Davidson FXSTDSE Screamin Eagle Softail Deuce Base 2004
Harley Davidson FXSTI Softail Standard Base 2001
Harley Davidson FXSTI Softail Standard Base 2002
Harley Davidson FXSTI Softail Standard Base 2003
Harley Davidson FXSTI Softail Standard Base 2004
Harley Davidson FXSTI Softail Standard Base 2005
Harley Davidson FXSTI Softail Standard Base 2006
Harley Davidson FXSTS Springer Softail Base 1999
Harley Davidson FXSTS Springer Softail Base 2000
Harley Davidson FXSTS Springer Softail Base 2001
Harley Davidson FXSTS Springer Softail Base 2002
Harley Davidson FXSTS Springer Softail Base 2003
Harley Davidson FXSTS Springer Softail Base 2004
Harley Davidson FXSTS Springer Softail Base 2005
Harley Davidson FXSTS Springer Softail Base 2006
Harley Davidson FXSTSI Springer Softail Base 2001
Harley Davidson FXSTSI Springer Softail Base 2002
Harley Davidson FXSTSI Springer Softail Base 2003
Harley Davidson FXSTSI Springer Softail Base 2004
Harley Davidson FXSTSI Springer Softail Base 2005
Harley Davidson FXSTSI Springer Softail Base 2006