| Pos. | No. | Driver / Nationality | Car | Entrant | Laps | Time/retired | Grp Pos | Group | Grid | Qual Time |
|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 2 | Rolf Stommelen (D)
Manfred Schurti (FL) |
Porsche 935/77 003 | Martini Racing | 161 | 6:00:12,560 | 1. | Gr.5 | 2. | 2:11,500 |
| 2. | 5 | Martino Finotto (I)
Carlo Facetti (I) Romeo Camathias (CH) |
Porsche 935 930 770 0902 | Jolly Club | 155 | 2. | Gr.5 | 4. | 2:15,200 | |
| 3. | 26 | "Victor" (I)
Piero Monticone (I) |
Porsche 935 930 770 0906 | "Victor" | 154 | 3. | Gr.5 | 5. | 2:18,300 | |
| 4. | 18 | Arturo Merzario (I)
Giuseppe Bianco (I) Luigi Tommasi (I)* |
Porsche 934 930 670 0157 | Jolly Club | 149 | 1. | GT | 6. | 2:19,500 | |
| 5. | 14 | "Amphicar" (I)
Luigi Moreschi (I) Girolama Capra (I)^ |
Porsche Carrera RSR | Ateneo | 147 | 2. | GT | 7. | 2:20,600 | |
| 6. | 38 | Klaus Utz (D)
Rolf Blind (D) |
Porsche Carrera RSR | Hahn Sportwagen | 145 | 3. | GT | 10. | 2:24,100 | |
| 7. | 7 | Claude Haldi (CH)
Laurent Ferrier (F) Herbert Mueller (CH)* |
Porsche 934 930 670 0171 | Schiller Racing Team | 144 | 4. | GT | 8. | 2:21,100 | |
| 8. | 16 | Anna Cambiaghi (I)
Emilio Paleari (I) Carlo Facetti (I)^ |
Lancia Stratos | Jolly Club | 140 | 5. | GT | 9. | 2:22,500 | |
| 9. | 31 | Mario Ruoso (I)
"Pal Joe" (I) |
Ford Escort RS | Mario Ruoso | 137 | 4. | Gr.5 | 16. | 2:27,700 | |
| 10. | 24 | Guido Agazzotti Cavazza (I)
Roberto Nardini (I) |
Porsche Carrera RSR | Guido Agazzotti Cavazza | 134 | 6. | GT | 20. | 2:34,000 | |
| 11. | 22 | Odoardo Govoni (I)
Vincenzo Angelelli (I) |
Porsche 911S | Odoardo Govoni | 129 | 7. | GT | 18. | 2:32,200 | |
| NC | 15 | Umberto Grano (I)
Giorgio Schön (I) |
Ford Escort RS 1800 | Jolly Club | 108 | Gr.5 | 11. | 2:24,700 | ||
| DNF | 27 | Franco Berruto (I)
Mario Radicella (I) |
Porsche Carrera | Franco Berruto | 103 | GT | 21. | 3:10,900 | ||
| DNF | 11 | Girolama Capra (I)
Gabriele Gottifredi (I) Duilio Ghislotti (I)^ Angelino Lepri (I)^ Carlo Rebai (I)^ |
Porsche 934 930 670 0169 | Gabriele Capoferri | 77 | GT | 13. | 2:26,700 | ||
| DNF | 3 | Bob Wollek (F)
John Fitzpatrick (GB) |
Porsche 935 930 770 0903 | Porsche Kremer Racing | 64 | Accident | Gr.5 | 3. | 2:13,200 | |
| DNF | 1 | Jochen Mass (D)
Jürgen Barth (D) Jacky Ickx (B)* |
Porsche 935/77 004 | Martini Racing | 63 | Accident | Gr.5 | 1. | 2:11,200 | |
| DNF | 29 | Roberto Curatolo (I)
Guglielmo Manini (I) |
Fiat X1/9 (Dallara) | Roberto Curatolo | 57 | Brakes | Gr.5 | 12. | 2:26,600 | |
| DNF | 33 | Cosimo Turizio (I)
Piero Nappi (I) Antonio Ferrari (I)* |
Ford Escort | Vesuvio | 44 | Fuel injection | T | 17. | 2:27,800 | |
| DNF | 9 | Maurizio Micangeli (I)
Carlo Pietromarchi (I)* |
De Tomaso Pantera | Maurizio Micangeli | 13 | Oil system | GT | 15. | 2:26,900 | |
| DNF | 28 | Luigi Laschi (I)
Santini^ Carlos Lara (I)^ Alfredo Braccini (I)* |
Alfa Romeo GTA | Citta di Firenze | 6 | Oil pressure | GT | 19. | 2:33,600 | |
| DNF | 12 | Carlo Rebai (I)
Duilio Ghislotti (I)* Ruggero Parpinelli (I)* |
Porsche Carrera RSR Turbo | Gabriele Capoferri | 2 | Engine | Gr.5 | 14. | 2:26,900 | |
| DNA | Egon Evertz (D)
Leo Kinnunen (SF) |
Porsche 934/5 930 670 0155 | Egon Evertz | Gr.5 | ||||||
| DNA | 4 | John Cooper (GB)
John Goss (AUS) |
Porsche 934/5 | John Cooper | Gr.5 | |||||
| DNA | 6 | Reinhold Jöst (D)
Jürgen Barth (D) |
Porsche Carrera RSR | Joest Racing | GT | |||||
| DNA | 7 | Arturo Merzario (I)
Spartaco Dini (I) |
BMW 3.0 CSL | Arturo Merzario | Gr.5 | |||||
| DNA | 19 | Enrico Grasso (I)
"Gimax" (I) |
Porsche 911S | Sesto Corse | GT | |||||
| DNA | 21 | Ricciardo Ricci (I) | BMW 2002 | Vesuvio | T | |||||
| DNA | 23 | Alessandro Fracastoro (I)
Ettore Bogani (I) |
Alfa Romeo GTV | Alessandro Fracastoro | GT | |||||
| DNA | 25 | Marcello Gallo (I)
Luciano Galluzzo (I) |
Alfa Romeo GTV | Marcello Gallo | GT | |||||
| DNA | 32 | Francesco Vintaloro (I) | Lancia Stratos | Francesco Vintaloro | GT | |||||
| DNA | 34 | Franco Bernabei (I)
Gianluigi Ticchi (I) |
Porsche Carrera | Franco Bernabei | GT | |||||
| DNA | 35 | Mario Radicella (I) | Porsche Carrera | Mario Radicella | GT | |||||
| DNA | 36 | Palmerino Caputo (I)
Giovanni Ognio (I) |
Lotus Europa | Palmerino Caputo | GT |
| Winning Time: 6h00m12.56s, 87.402 mph/140.659 kph |
| Fastest Lap: Jochen Mass #1 (Porsche 935-77), 1m57.2, 100.109 mph/161.109 kph |
| * Driver entered for car, but never drove it at meeting |
| ^ Driver practiced car, but did not race it |
| RES - Reserve (Practiced, on standy-by for start) |
| REE - Reserve Entry |
| DNA - Did Not Arrive |
| DNS - Did Not Start |
| DNF - Did Not Finish |
| DNP - Did Not Practice |
| NC - Not Classified |
| DSQ - Disqualified |
| NRF - Not Running At Finish |
| NAC - Not Accepted |
| REJ - Rejected (Did not pass scrutineering) |