S&S .640 inch lift cam is used in S&S T124 engines, this cam is designed to make horsepower. Intended for engines of 96 CID or more with compression ratios between 10.5:1 and 11.5:1. 3000-6000 rpm.
This 640CE Chain Drive Easy Start cam is designed to increase performance at an affordable price and Easy Start Cams allow stock starter to start any engine. Because this kit reuses many of the stock parts it is very economical.
Kit includes cams, gearcover gasket, cam bearings, and instructions.
For 2006 Harley-Davidson® Dyna® and 2007-'16 big twin models.
Note: Special valve springs will be needed.
Fuel injection tuning required.
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.