S&S 640GE Gear Drive Easy Start Cams greatly improve valve timing accuracy by eliminating timing chain lash and allow stock starter to start any engine. The 640 cam is designed for engines of 95" or more with compression ratios between 10.5:1 and 11.5:1 used in S&S 124" engines.
Cam kit includes inner gears as well as an outer cam drive gear kit.
Product Note:Not bolt-in, requires special valve springs (sold separately).
Specification
Details
Country of Origin
USA
Engine Type
Twin Cam
Exhaust Duration
270 degrees
Exhaust Lift
.214 in.
Exhaust Lobe Center
110 degrees
Exhaust Timing (Close)
25 degrees
Exhaust Timing (Open)
65 degrees
Intake Duration
265 degrees
Intake Lift
.228 in.
Intake Lobe Center
107.5 degrees
Intake Timing (Close)
60 degrees
Intake Timing (Open)
25 degrees
Valve Lift
.640 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.
