| Black Widow Twin Cam 99-06 (Except 2006 Dyna)-Chain/Gear Drive | |||||||||
| Cam | Event | Open | Close | Lift | TDC | Duration | Centerline | ||
| BW-48 | Intake | 20.0 | 48.0 | .532 | .186 | 248 | 104.00 | ||
| Exhaust | 52.0 | 16.0 | .532 | .166 | 248 | 108.00 | |||
| Black Widow Twin Cam 07-up (and 2006 Dyna)-Chain/Gear Drive | |||||||||
| Cam | Event | Open | Close | Lift | TDC | Duration | Centerline | ||
| BW-49 | Intake | 20.0 | 48.0 | .525 | - | 244 | 104.00 | ||
| Exhaust | 52.0 | 16.0 | .525 | - | 248 | 108.00 | |||
| BW-55 | Intake | 20.0 | 36.0 | .555 | - | 236 | 98.00 | ||
| Exhaust | 44.0 | 18.0 | .555 | - | 242 | 103.00 | |||
| BW-62 | Intake | 20.0 | 44.0 | .620 | - | 244 | 104.00 | ||
| Exhaust | 55.0 | 19.0 | .620 | - | 254 | 108.00 | |||
| BW-44 | Intake | 19.5 | 44.5 | .585 | - | 244 | 102.50 | ||
| Exhaust | 50.5 | 17.5 | .585 | - | 252 | 108.50 | |||
| BW-47 | Intake | 18.0 | 40.0 | .585 | - | 238 | 101.00 | ||
| Exhaust | 49.0 | 15.0 | .585 | - | 244 | 107.00 | |||
| BW-53 | Intake | 23.0 | 45.0 | .580 | .215 | 238 | 101.00 | ||
| Exhaust | 53.5 | 18.5 | .580 | .189 | 244 | 107.50 | |||
| BW-54 | Intake | 26.0 | 54.0 | .650 | .251 | 260 | 104.00 | ||
| Exhaust | 61.0 | 25.0 | .650 | .243 | 266 | 108.00 | |||
| Black Widow Twin Cam 07-up (and 2006 Dyna)-Gear Drive only | |||||||||
| Cam | Event | Open | Close | Lift | TDC | Duration | Centerline | ||
| BW-SS59E | Intake | 19.0 | 47.0 | .572 | .182 | 246 | 104.00 | ||
| Exhaust | 58.0 | 12.0 | .573 | .156 | 252 | 114.00 | |||
| BW-64 | Intake | 25.0 | 49.0 | .643 | - | 254 | 102.00 | ||
| Exhaust | 55.0 | 19.0 | .643 | - | 254 | 108.00 | |||
| BW-Turbo/SC | Intake | 10.0 | 46.0 | .555 | - | 236 | 108.00 | ||
| Exhaust | 65.0 | 13.0 | .565 | - | 258 | 116.00 | |||