| Model | Duration Intake (Degrees) | Duration Exhaust (Degrees) | Lift Intake (Inches) | Lift Exhaust (Inches) | Intake Centerline (Degrees) | Exhaust Centerline (Degrees) |
| Stock "early" US 7/83 to 7/87 Z31 | 252 or 193 @ 0.050" | 252 or 193 @ 0.050" | 0.393 | 0.393 | 106 | 116 |
| Stock "late" US Z31 08/87+ | 248 or 189 @ 0.050" | 248 or 192 @ 0.050" | 0.393 | 0.393 | 114 | 114 |
| J-spec Z31 cams | 252 or 193 @ 0.050" | 252 or 193 @ 0.050" | 0.393 | 0.393 | ||
| European Z31 Cams | 264 | 262 | 0.393 | 0.393 | ||
| NISMO Z31 Cams | 264 | 262 | 0.393 | 0.393 | ||
| USDM VG30 "Truck" cams (D21, WD21 and J30) | 248 or 189 @ 0.050" | 248 or 192 @ 0.050" | 0.393 | 0.393 | ||
| USDM VG33 Cams (all) | 240 | 244 | 0.366 | 0.366 |