| 1st | 32 | Renzo Zorzi / Claudio Francisci | Capoferri M1 Ford | Renzo Zorzi | 1:45.9500 |
| 2nd | 42 | Giorgio Francia / Remo Ramanzini | Osella PA8 BMW | Giorgio Francia | 1:46.8600 |
| 3rd | 41 | Vittorio Brambilla / Lella Lombardi | Osella PA8 BMW | Scuderia Torino Corse | 1:47.3000 |
| 4th | 1 | Riccardo Patrese / Walter Röhrl | Lancia Beta Montecarlo Turbo | Lancia Corse | 1:47.9100 |
| 5th | 2 | Eddie Cheever / Piercarlo Ghinzani | Lancia Beta Montecarlo Turbo | Lancia Corse | 1:48.7000 |
| 6th | 48 | "Gimax" / Marcello Gallo | Osella PA8 BMW | "Gimax" | 1:48.9000 |
| 7th | 35 | Siegfried Brunn / Herbert Müller | Porsche 908/3 | Siegfried Brunn | 1:50.2900 |
| 8th | 18 | Dieter Schornstein / Harald Grohs | Porsche 935/77A | Vegla Racing Team | 1:50.4800 |
| 9th | 21 | Jürgen Barth / Henri Pescarolo | Porsche 935/77A | Sportwagen | 1:50.5100 |
| 10th | 47 | Enrico Gaglliotto / Luciano Lovato | Osella PA7 BMW | Enrico Gaglliotto | 1:50.6300 |
| 11th | 46 | Mauro Nesti / Arcadio Pezzali | Osella PA8 BMW | Arcadio Pezzali | 1:50.6300 |
| 12th | 43 | Mario Casoni / "Amphicar" / Luigi Moreschi | Osella PA7 BMW | Scuderia Ateneo | 1:50.6900 |
| 13th | 34 | Alain De Cadenet / Desiré Wilson | De Cadenet Lola LM Ford | Alain De Cadenet | 1:51.5700 |
| 14th | 52 | Duilio Ghislotti / Luigi Colzani | Lola T296 BMW | Duilio Ghislotti | 1:53.1600 |
| 15th | 3 | Carlo Facetti / Gianfranco Ricci | Lancia Beta Montecarlo Turbo | Jolly Club | 1:53.2500 |
| 16th | 19 | "Victor" / Giorgio Schön | Porsche 935 | "Victor" | 1:53.5100 |
| 17th | 66 | Gerardo Vatielli / Paolo Giangrossi | Osella PA6 Ford | Gerardo Vatielli | 1:54.9100 |
| 18th | 62 | Salvatore Pellegrino / Vito Carone / Duilio Truffo | Osella PA4 Ford | Salvatore Pellegrino | 1:55.9100 |
| 19th | 5 | Albrecht Krebs / Gerd Reiss | BMW 320i | Gerhard Reiss | 1:55.9500 |
| 20th | 53 | Pasquale Barberio / Secondo Ridolfi | Lola T284 BMW | Dino Ridolfi | 1:56.1000 |
| 21st | 64 | Roberto Marazzi / Pasquale Vecchione | Osella PA8 Ford | Scuderia Vesuvio | 1:56.6200 |
| 22nd | 65 | Ruggero Parpinelli / Silvano Frisori | Osella PA6 Ford | Ruggero Parpinelli | 1:56.8500 |
| 23rd | 44 | Pasquale Anastasio / Giampaolo Ceraolo | Osella PA7 BMW | Pasquale Anastasio | 1:56.8800 |
| 24th | 69 | Piergiorgio Provolo / Francesco Cerulli-Irelli | AMS - Ford | Pier Giorgio Provolo | 1:57.6500 |
| 25th | 31 | Spartaco Dini / Fabrizio Violati | Ferrari 512 BB | Scuderia Supercar Bellancauto | 1:58.4700 |
| 26th | 56 | Giuseppe Bottura / Giuseppe Pellin | March 75S BMW | Giuseppe Bottura | 1:59.0400 |
| 27th | 68 | Ezio Baribbi / "Pal Joe" | Osella PA7 Ford | | 1:59.7900 |
| 28th | 33 | Laurent Ferrier / François Servanin | BMW M1 | BMW Zol-Auto | 2:00.5900 |
| 29th | 51 | Vito Veninata / Giovanni Cascone | Osella PA6 BMW | Vito Veninata | 2:00.6700 |
| 30th | 63 | Mario Benusiglio / Luigi de Angelis / Renato Benusiglio | Osella PA5 Ford | Mario Benusiglio | 2:02.0600 |
| 31st | 54 | Jacques Boillat / Georges Morand | Lola T296 Ford | Georges Morand | 2:02.3100 |
| 32nd | 11 | Carlo Pietromarchi / Marco Micangeli / Massimo Faraci | De Tomaso Pantera | William Sala | 2:03.7900 |
| 33rd | 26 | Claudio Magnani / Sergio Rombolotti | Lancia Stratos | Claudio Magnani | 2:05.2400 |
| 34th | 15 | Anton Fischhaber / Ralf Walter / Erich Schiebler | Porsche 935 | Erich Schiebler | 2:05.3500 |
| 35th | 67 | Gian Piero Gatti / Angelo Bottazzini | Chevron B36 Ford | Gian Piero Gatti | 2:05.6600 |
| 36th | 12 | Carlo Facetti / Giancarlo Gagliardi | Ferrari 308 GTB Turbo | Jolly Club | 2:06.1600 |
| 37th | 6 | Giuseppe Piazzi / Sandro Cinotti | Fiat X1/9 | Giuseppe Piazzi | 2:07.1900 |
| 38th | 14 | Felice Besenzoni / Luciano Dal Ben | Ferrari 308 GTB | Autosebio Racing | 2:11.1700 |
| 39th | 7 | Ademaro Massa / Giancarlo Galimberti / Angelo Chiapparini | Alfa Romeo Alfetta GTV | Angelo Chiapparini | 2:14.6300 |
| 40th | 22 | Franco Berruto / Franco Pizzato / Michele Licheri | Porsche Carrera RSR | Dei Fiori | 2:18.1200 |