| 1st | 2 | Jean-Pierre Jarier / Jacques Laffite | Alpine-Renault A442 Turbo | Renault Sport | 1:40.2300 |
| 2nd | 3 | Jody Scheckter / Henri Pescarolo | Alpine-Renault A442 Turbo | Renault Sport | 1:41.7700 |
| 3rd | 7 | Jochen Mass / Jacky Ickx | Porsche 936 | Martini Racing | 1:43.0300 |
| 4th | 1 | Vittorio Brambilla / Arturo Merzario | Alfa Romeo T33/TT/12 | Autodelta SpA | 1:44.1900 |
| 5th | 5 | Jürgen Barth / Reinhold Jöst / Horst Godel | Porsche 908/3 | Joest Racing | 1:46.8400 |
| 6th | 6 | Mario Casoni / Marco Capoferri | Lola T380 Ford | Nettuno | 1:47.1000 |
| 7th | 12 | Manrico Zanuso | Chevron B31 Ford | John Blanckley | 1:48.2100 |
| 8th | 33 | Spartaco Dini / Giovanni Anzeloni | Osella PA4 BMW | Torino Corse | 1:48.3800 |
| 9th | 21 | "Pal Joe" / Duilio Truffo | Osella PA4 Ferraris | "Pal Joe" | 1:48.7000 |
| 10th | 40 | "Gimax" / Stanislao Sterzel | March 75S BMW | Sesto Corse | 1:49.3400 |
| 11th | 4 | Reinhold Jöst / Ernst Kraus | Porsche 908/4 Turbo | Joest Racing | 1:49.4900 |
| 12th | 34 | Giuseppe Piazzi / Sandro Cinotti | Chevron B36 BMW | Giuseppe Piazzi | 1:49.9600 |
| 13th | 24 | Claudio Francisci / Giancarlo Naddeo | Alpine A441 Renault | Nettuno | 1:51.9400 |
| 14th | 30 | Roby Filannino / Ermanno Pettiti | Osella PA4 BMW | Torino Corse | 1:52.0400 |
| 15th | 35 | Herbert Müller / Rodolfo Cescato | Sauber C5 BMW | PP Sauber Racing | 1:52.7000 |
| 16th | 31 | Danilo Tesini / Marco Crosina | Osella PA4 BMW | Torino Corse | 1:54.9900 |
| 17th | 23 | "Amphicar" / Armando Floridia | Osella PA4 BMW | Ateneo | 1:55.1300 |
| 18th | 63 | "Gianfranco" | Osella PA3 Ford | "Tore" | 1:55.1600 |
| 19th | 22 | François Servanin / Laurent Ferrier | Chevron B36 ROC | Racing Organisation Course | 1:55.4300 |
| 20th | 38 | Ian Bracey / Tony Birchenhough | Lola T294S Ford | Dorset Racing Associates | 1:56.5600 |
| 21st | 9 | Teodoro Zeccoli | Alfa Romeo T33/TT/3 | Aequator Cottages | 1:56.7200 |
| 22nd | 62 | Luigi Pozzo / Franco Milano | Osella PA3 Ford | Rododendri | 1:57.5900 |
| 23rd | 67 | Arcadio Pezzali / Giuseppe Ranzolin | Chevron B23 Ford | Mendola | 1:58.6200 |
| 24th | 37 | Claude Crespin / Simon Phillips | Lola T294S Ford | Dorset Racing Associates | 1:58.7100 |
| 25th | 10 | Eberhard Braun | KMW SP30 Porsche | Sports Car Team of Austria | 1:59.3200 |
| 26th | 78 | Pasquale Anastasio / "Tambauto" | Chevron B26 Ford | Nord-Ovest | 1:59.3400 |
| 27th | 39 | "King" | March 75S BMW | Aretusa | 1:59.8800 |
| 28th | 11 | Axel Ahrens / Eberhard Braun | KMW SP30 Porsche | Sports Car Team of Austria | 2:00.2500 |
| 29th | 60 | Marcello Gallo | Chevron B23 Alfa Romeo | Marcello Gallo | 2:00.2800 |
| 30th | 64 | Ubaldo Smittarello / Giuseppe Bottura | Osella PA3 Ford | San Marco | 2:00.4700 |
| 31st | 76 | Alessandro Guidetti / Fabio Siliprandi | Dallara 1300 cmc Fiat | Mendola | 2:01.6000 |