| 1st | 8 | Jochen Mass / Tim Schenken | Mirage GR7 Ford | Gelo Racing Team | 1:28.9400 |
| 2nd | 2 | Arturo Merzario / Jacques Laffite | Alfa Romeo T33/TT/12 | Willi Kauhsen Racing Team | 1:29.6200 |
| 3rd | 1 | Derek Bell / Henri Pescarolo | Alfa Romeo T33/TT/12 | Willi Kauhsen Racing Team | 1:30.2500 |
| 4th | 4 | Gérard Larrousse / Jean-Pierre Jabouille | Alpine-Renault A442 Turbo | Renault Alpine | 1:30.3400 |
| 5th | 9 | Vittorio Brambilla / Giorgio Pianta | Lola T282 Ford | Jolly Club | 1:31.4000 |
| 6th | 7 | Herbert Müller / Gijs van Lennep | Porsche 908/3-6 Turbo | Dr. H. Dannesberger | 1:33.5700 |
| 7th | 3 | Jean-Pierre Jarier / Jean-Pierre Beltoise | Ligier JS2 Ford | Automobiles Ligier Gitanes | 1:34.1400 |
| 8th | 5 | Reinhold Jöst / Mario Casoni | Porsche 908/3 Turbo | Scuderia Nettuno Ovoro | 1:34.2300 |
| 9th | 14 | Heinz Schulthess / Corrado Manfredini | Lola T284 Ford | Gulf Switzerland | 1:36.3600 |
| 10th | 45 | "Alval" / Duilio Truffo | Osella PA3 Ferraris | Scuderia Citta dei Mille | 1:37.2400 |
| 11th | 31 | Laurent Ferrier / Xavier Lapeyre | Lola T294 ROC | Sociéte ROC | 1:37.5800 |
| 12th | 15 | Lella Lombardi / "Marie-Claude Beaumont" | Alpine-Renault A441 | Equipe Elf Switzerland | 1:37.7300 |
| 13th | 27 | Martino Finotto / Carlo Facetti | Osella PA3 BMW | Jolly Club | 1:38.0600 |
| 14th | 29 | Pierre-Marie Painvin / Jean-Pierre Jaussaud | Lola T292 ROC | Sociéte ROC | 1:38.5200 |
| 15th | 18 | Loris Kessel / Giorgio Francia | Cheetah G501 Ford | Cheetah Automobiles | 1:38.9400 |
| 16th | 44 | "Gianfranco" / Carlo Bilotti | Osella PA3 BMW | Carlo Bilotti | 1:39.5400 |
| 17th | 48 | Guy Tunmer / Vern Schuppan | March 75S Hart | Vern Schuppan | 1:39.9000 |
| 18th | 46 | Giancarlo Gagliardi / "Pal Joe" | Osella PA3 BMW | Scuderia Citta dei Mille | 1:39.9100 |
| 19th | 16 | Manfred Mohr / Francesco Cerulli-Irelli | AMS 274 Ford | Manfred Mohr | 1:40.3000 |
| 20th | 33 | Alan Jones / John Sheldon | Lola T294 Ford | Victoria Sporting Club Racing | 1:40.8200 |
| 21st | 6 | Jürgen Barth / Ernst Kraus | Porsche 908/3 | Scuderia Nettuno | 1:40.8900 |
| 22nd | 39 | Antônio Castro Prado / Colin Andrews | March 75S Ford | Alroy Racing | 1:43.0200 |
| 23rd | 41 | Mario Cabral / Alan Stubbs | March 75S Ford | Alroy Racing | 1:43.0400 |
| 24th | 54 | Roby Filannino / Ermanno Pettiti | Osella PA3 Ford | Roberto Filannino | 1:43.1800 |
| 25th | 78 | John Fitzpatrick / Toine Hezemans / Manfred Schurti | Porsche Carrera RSR | Gelo Racing Team | 1:43.4900 |
| 26th | 21 | "Gimax" / Giovanni Alberti | Chevron B21 Ford | Citta dei Mille | 1:43.5400 |
| 27th | 23 | John Calvert / John Blanckley | Chevron B23 Ford | John Blanckney | 1:43.8700 |
| 28th | 76 | Hans Heyer / Helmut Kelleners | Porsche 911 Carrera RSR 3.0 | Jägermeister Kremer Racing | 1:43.9300 |
| 29th | 79 | Reine Wisell / Clemens Schickentanz / Hartwig Bertrams | Porsche Carrera RSR | Tebernum Porsche Racing Team | 1:45.2500 |
| 30th | 22 | Robin Smith / Richard Robarts | Chevron B23 Ford | Robin Smith | 1:45.2900 |
| 31st | 53 | Mauro Nesti / Lorenzo Niccolini | Osella PA3 Ford | Lorenzo Niccolini | 1:45.3100 |
| 31st | 81 | Clemens Schickentanz / Hartwig Bertrams / Reine Wisell | Porsche Carrera RSR | Tebernum Porsche Racing Team | 1:45.6900 |
| 33rd | 77 | Toine Hezemans / Manfred Schurti / John Fitzpatrick | Porsche 911 Carrera RSR | Gelo Racing Team | 1:45.7500 |
| 34th | 74 | Claude Haldi / Bernard Béguin | Porsche 911 Carrera RSR 3.0 | Porsche Club Romand | 1:46.0500 |
| 35th | 36 | Claude Crespin / Brian Joscelyne / Ian Harrower | Lola T294 Ford | Dorset Racing | 1:46.2900 |
| 36th | 73 | Giorgio Schön / Kemal Nuri Pelit | Porsche Carrera RSR | Jolly Club | 1:46.5800 |
| 37th | 63 | Claudio Francisci / Giorgio Grassi | Chevron B23/26 Ford | Claudio Francisci | 1:46.8300 |
| 38th | 35 | Manrico Zanuso / Ray Fallo | Lola T294 Ford | Roger Heavens Racing | 1:46.9500 |
| 39th | 52 | Ledy Zampolli / Roberto Bottanelli | GRD S75 Ford | Ledy Zampolli | 1:48.9600 |
| 40th | 59 | "Bramen" / Pasquale Anastasio | Chevron B31 Ford | "Bramen" | 1:49.6400 |