| Date | Sunday 7 September 1958 |
| Start time | 14:00 |
| Event | Italian GP |
| Circuit | Monza |
| Race | 15 of 16 |
| Championship race | 74 |
| Laps | 70 |
| Circuit Perimeter | 5750 m |
| Race Distance | 5750 × 70 = 402.500 km |
| Grid Format | 4-3-4-3 |
| Pole Position | Left |
| First Corner | Right |
| Track Direction | Clockwise |
| Weather | Hot, Dry |
| Entries | 21 |
| Qualifiers | 21 |
| Finishers | 7 |
| Championship Debutants | None |
| Milestones | None |
| Records Broken |
None
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