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S&S Cycle 640G Chain Drive Cam

Product Information

Price Range: $345.95 - $409.95

Your Fitment

Product Information

Convert your Twin Cam to a gear drive
Kit includes cams, gears both inner and outer, gaskets, bearings, bolts and heavy-duty bearing plate
High performance cams
Includes cams, gaskets, bearings and installation instructions
Made in USA
Designed for engines of 95in. or more with compression ratios between 10.5:1 and 11.5:1 used in S&S 124in. engines
Intake Opening (degrees): 25
Intake Closing (degrees): 60
Exhaust Opening (degrees): 65
Exhaust Closing (degrees): 25
Intake Duration (degrees): 265
Exhaust Duration (degrees): 270
Valve Lift (in): .640
Intake Lift at TDC (in): .228
Exhaust Lift at TDC (in): .214