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DIGITAL CAMSHAFT SPECS
Below are listed the specifications of some common factory and aftermarket camshafts. These measurements were performed on a "Cam Doctor", a tool for digitizing cam profiles for use in engine simulation software. The measurements shown are at .050" lift. Many cam grinders advertise their profiles at .020" lift, but most experts agree that the lift below .020" is insignificant to the performance of the camshaft, although, it can have an affect on idle and lobe/lifter wear.
| GRIND | EX-DUR | EX-LIFT | IN-DUR | IN-LIFT | L/C | |
| 102 - S/S90 | 233 | 0.330 | 233 | 0.330 | 107.5 | |
| 103 - Normal | 220 | 0.285 | 220 | 0.285 | 107.5 | |
| 15 - 356C | 215 | 0.303 | 215 | 0.303 | 108.0 | |
| 16 - 356SC/912 | 233 | 0.330 | 233 | 0.330 | 107.5 | |
| RO 200,5 | 244 | 0.333 | 244 | 0.333 | 104.0 | |
| Elgin 6708 | 233 | 0.317 | 233 | 0.317 | 108.0 | |
| Elgin 7008 | 241 | 0.333 | 241 | 0.333 | 108.0 | |
| Elgin 7208 high lift | 247 | 0.370 | 247 | 0.370 | 108.0 | |
| Elgin 7805-15 | 285 | 0.430 | 285 | 0.430 | 104.0 | |
| Web 118 | 243 | 0.366 | 243 | 0.366 | 108.0 | |
| Web 86B | 259 | 0.385 | 259 | 0.385 | 108.0 | |
| Norris 356S | 248 | 0.350 | 248 | 0.350 | 107.0 |
The specs above are for Exhaust/Intake Duration at
.050" and Camshaft Lift in inches.
To find Net Lift multiply the Intake by 1.3, and the Exhaust by 1.13.
L/C stands for Lobe Center (the distance between the intake and exhaust lobes).