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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.
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.
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.
