551C Chain Drive Camshaft Kit for 1999-'06 Big Twins except '06 HD<sup>®</sup> Dyna<sup>®</sup>

551C Chain Drive Camshaft Kit for 1999-'06 Big Twins except '06 HD® Dyna®

Item #: 330-0002
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$314.95
PowerTerms

551 cams are bolt-in cams for 2005-'16 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. 551 cams are not recommended for compression ratios of 10:1 or greater. Greatly improves low-end and midrange torque, strongest from idle-4000rpm.

 

Features and Benefits:

  • Great way to increase performance at an affordable price
  • Quick installation – reuse many stock components
  • 2005-'06 can use stock valve springs

 

Kit Contains:

  • Cams
  • Gearcover gasket
  • Cam bearings
  • Instructions

 

Note:  1999-'04 will need special valve springs.

 

 

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If OES, 509 or 510C cams are used with the stock chain drive system in Twin Cam 88® engines, it is recommended to use cylinder heads with stock valve springs or performance valve springs with no more than 160 lb. of seat force. For more demanding applications, we recommend the S&S gear drive cams. When using 1999-'06 chain drive cams for lifts over .510", S&S strongly recommends that the stock chain drive be upgraded to the S&S gear drive or to the H-D® #25284-08 or #25284-11 hybrid plate. This kit updates the problematic spring loaded chain tensioners to reliable hydraulic tensioners and also upgrades the oil pump. 551 cams are not recommended with compression ratio of 10:1 or higher. S&S can do a special order cam. Contact your S&S Customer Service Representative for more information. Not legal for sale or use on CA or EPA pollution controlled motorcycles.
Disclaimer

NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. NOT LEGAL FOR SALE OR USE ON ANY EPA POLLUTION CONTROLLED MOTOR VEHICLE.