S&S Cycle 99-06 BT 551C Chain Drive Camshaft Kit

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.

• Greatly improves low-end and midrange torque, strongest from idle-4000rpm
• Designed for engines with 96 to 106 CID and 9:1 to 9:9 compression
• Not recommended for compression ratios of 10:1 or greater
• Great way to increase performance at an affordable price
• Quick installation - reuse many stock components
• 2005-'06 can use stock valve springs