S&S Cycle 520 Camshaft - 33-5073

For 3-5/8in. and 4in. bore engines up to 107in. with up to 10:1 compression
Works well with stock or ported heads
Short duration and reduced overlap make good low end torque
Great for dressers or riding double
Supplied with many emission compliant engines used by aftermarket motorcycle manufacturers
Requires high lift springs and normal clearance checks
Intake Opening (degrees): 0
Intake Closing (degrees): 40
Exhaust Opening (degrees): 50
Exhaust Closing (degrees): 2
Intake Duration (degrees): 220
Exhaust Duration (degrees): 232
Intake Lift (in): .520
Exhaust Lift (in): .520
Intake Lift at TDC (in): .086
Exhaust Lift at TDC (in): .094
Spring spacing is required
For hydraulic tappet