| 1st | 3 | Jochen Mass / Jacky Ickx | Porsche 936 | Martini Racing | 1:32.2300 |
| 2nd | 2 | Jean-Pierre Jabouille / Jacques Laffite | Alpine-Renault A442 Turbo | Renault Sport | 1:32.7200 |
| 3rd | 1 | Jean-Pierre Jarier / Henri Pescarolo | Alpine-Renault A442 Turbo | Renault Sport | 1:33.7300 |
| 4th | 21 | Arturo Merzario / "Pal Joe" | Osella PA3 Ferraris | Enzo Osella | 1:37.6000 |
| 5th | 4 | Reinhold Jöst / Ernst Kraus | Porsche 908/4 Turbo | Joest Racing | 1:38.7200 |
| 6th | 14 | Manrico Zanuso / Martin Raymond | Chevron B31 Ford | John Blanckley | 1:40.3900 |
| 7th | 19 | Peter Hoffmann / Norbert Dombrowski | McLaren M8F Chevrolet | Vergölst Reifen Team | 1:42.1300 |
| 8th | 9 | Mario Casoni / Marco Capoferri | Lola T380 Ford | Marco Capoferri | 1:42.3500 |
| 9th | 5 | Horst Godel / Jürgen Barth / Reinhold Jöst | Porsche 908/3 | Joest Racing | 1:42.7500 |
| 10th | 38 | Giuseppe Piazzi / Sandro Cinotti | Chevron B36 BMW | Giuseppe Piazzi | 1:42.8400 |
| 11th | 35 | Herbert Müller / Rodolfo Cescato | Sauber C5 BMW | PP Sauber Racing | 1:43.6300 |
| 12th | 28 | Spartaco Dini / Lorenzo Niccolini / *Alberto Rosselli | Osella PA4 BMW | Spartaco Dini | 1:45.4600 |
| 13th | 16 | Leo Kinnunen / Egon Evertz | Porsche 908/4 Turbo | Egon Evertz | 1:45.9400 |
| 14th | 27 | Giuseppe Bianco / Giorgio Schön / Luigi Tommasi | Osella PA3 BMW | Jolly Club | 1:46.6100 |
| 15th | 33 | Stanislao Sterzel / "Gimax" | March 75S BMW | Stanislao Sterzel | 1:46.8800 |
| 16th | 41 | Luigi Colzani / Giorgio Pianta | Chevron B23 Ford | Jolly Club | 1:47.1200 |
| 17th | 65 | Carlo Giorgio / "Robin Hood" | AMS 175 Ford | AMS | 1:47.2800 |
| 18th | 29 | "Gianfranco" / Achille Marzi | Osella PA3 Hart | Achille Marzi | 1:47.4100 |
| 19th | 36 | Renzo Zorzi / Martino Finotto | Lola T294 Ferraris | Jolly Club | 1:47.5400 |
| 20th | 32 | Giancarlo Naddeo / Claudio Francisci | Alpine A441 Renault | Giancarlo Naddeo | 1:47.6600 |
| 21st | 39 | François Servanin / Laurent Ferrier | Chevron B36 ROC | Racing Organisation Course | 1:48.1700 |
| 22nd | 46 | Robin Smith / Richard Jones | Chevron B26 Ford | Robin Smith | 1:48.4900 |
| 23rd | 64 | Francesco Cerulli-Irelli / "Gero" | AMS 175 Ford | AMS | 1:49.0600 |
| 24th | 15 | Guy Edwards / John Lepp | March 76S Ford | Guy Edwards | 1:49.3700 |
| 25th | 26 | Giovanni Anzeloni / "Pooky" | Osella PA4 BMW | Giovanni Anzeloni | 1:49.6800 |
| 26th | 7 | Günther Egermann / Eberhard Braun | KMW SP30 Porsche | Sports Car Team of Austria | 1:49.7900 |
| 27th | 57 | Marcello Gallo / Maurizio Gellini | Chevron B23 Alfa Romeo | Marcello Gallo | 1:50.1200 |
| 28th | 25 | Carlo Bilotti / Pasquale Barberio | Osella PA4 BMW | Pasquale Barberio | 1:50.3000 |
| 29th | 22 | "Amphicar" / Armando Floridia | Osella PA4 BMW | Ateneo | 1:50.3500 |
| 30th | 24 | Danilo Tesini / Marco Crosina | Osella PA4 BMW | Danilo Tesini | 1:50.5100 |
| 31st | 23 | Ermanno Pettiti / Roby Filannino | Osella PA4 BMW | Ermanno Pettiti | 1:50.6700 |
| 32nd | 67 | Pasquale Anastasio / "Tambauto" | Chevron B31 Ford | Pasquale Anastasio | 1:50.6700 |
| 33rd | 42 | Bob Marsland / Alois Müller | Chevron B31 Hart | Hay Seech | 1:51.1800 |
| 34th | 6 | Kurt Hild / Hans-Peter Plöderl | KMW SP30 Porsche | Sports Car Team of Austria | 1:52.6500 |
| 35th | 48 | Ian Bracey / Brian Joscelyne | Lola T294S Ford | Dorset Racing | 1:52.7100 |
| 36th | 49 | Ian Harrower / Simon Phillips | Lola T294S Ford | Dorset Racing | 1:53.1600 |
| 37th | 55 | Giuseppe Bottura / Ubaldo Smittarello | Osella PA3 Ford | Giuseppe Bottura | 1:53.4000 |
| 38th | 31 | Ledy Zampolli / Achille Soria | Osella PA2 Fiat-Abarth | Achille Soria | 1:54.9600 |
| 39th | 56 | Arcadio Pezzali / Giuseppe Ranzolin | Chevron B23 Ford | Arcadio Pezzali | 1:54.3000 |
| 40th | 37 | Georges Morand / François Trisconi | Lola T292 Ford | GVEA | 1:55.1000 |
| 41st | 61 | "Pal Joe" | Osella PA3 Ford | Enzo Osella | 1:52.5600 |
| 41st | 58 | Vitto Carbonara / Antonio Petruzzi | GRD S74 Ford | Aquila | 1:55.3000 |
| 42nd | 68 | Fabio Siliprandi / Alessandro Guidetti | Dallara 1300 cmc Fiat | Fabio Siliprandi | 1:58.2200 |