S&S Cycle 631 Camshaft - 33-5080

For high RPM applications in all street and racing engines with 11:1 and higher compression ratios
Develops maximum performance from about 4500 RPM on up
Great performance cam, but expect more wear and tear on valve train components
Valve spring spacing and other normal clearance checks required
Intake Opening (degrees): 34
Intake Closing (degrees): 61
Exhaust Opening (degrees): 66
Exhaust Closing (degrees): 29
Intake Duration (degrees): 275
Exhaust Duration (degrees): 275
Intake Lift (in): .630
Exhaust Lift (in): .630
Intake Lift at TDC (in): .281
Exhaust Lift at TDC (in): .221
Spring spacing is required
For solid or hydraulic tappet