| 1st | 22 | Pedro Rodriguez / Leo Kinnunen | Porsche 917 K | J. W. Automotive | 1:40.4800 |
| 2nd | 31 | Ignazio Giunti / Jacky Ickx | Ferrari 512 M | Spa Ferrari SEFAC | 1:40.7500 |
| 3rd | 20 | Kurt Ahrens, Jr. / Helmut Marko | Porsche 917 K | Porsche KG Salzburg | 1:41.1600 |
| 4th | 21 | Vic Elford / Richard Attwood | Porsche 917 K | Porsche KG Salzburg | 1:41.1900 |
| 5th | 23 | Jo Siffert / Brian Redman | Porsche 917 K | J. W. Automotive | 1:42.0200 |
| 6th | 1 | Nanni Galli / Rolf Stommelen | Alfa Romeo T33/3-71 | Autodelta SpA | 1:42.7800 |
| 7th | 3 | Andrea de Adamich / Henri Pescarolo | Alfa Romeo T33/3-71 | Autodelta SpA | 1:43.6100 |
| 8th | 2 | Toine Hezemans / Masten Gregory | Alfa Romeo T33/3-71 | Autodelta SpA | 1:44.2300 |
| 9th | 6 | Gérard Larrousse / Rudi Lins | Porsche 908/02 | Martini Racing Team | 1:46.8900 |
| 10th | 4 | Teodoro Zeccoli / Carlo Facetti | Alfa Romeo T33/3-71 | Autodelta SpA | 1:47.3900 |
| 11th | 5 | Reinhold Jöst / Gerold Pankl | Porsche 908/02 | Martini Racing Team | 1:49.2600 |
| 12th | 12 | Niki Lauda / Peter Peter | Porsche 908/02 | Bosch Racing Team Wien | 1:49.4200 |
| 13th | 25 | Georg Loos / Franz Pesch | Ferrari 512 S Spyder | Gelo Racing | 1:50.9100 |
| 14th | 14 | Luigi Moreschi / "PAM" | Abarth 2000 OT | Scuderia Brescia Corse | 1:55.2700 |
| 15th | 7 | Max Wilson / Mac Daghorn | Lola T210 Ford | Max Wilson | 1:55.4700 |
| 16th | 24 | Lambert Hofer / Werner Riedl | Porsche 910 | Bosch Racing Team | 1:58.4400 |
| 17th | 9 | Charles Graemiger / Richard Vogel | Chevron B8 BMW | Chuck Graemiger | 1:59.9600 |
| 18th | 32 | Kurt Rieder / Otto Stuppacher / Siegfried Pust | Porsche 906 | Bosch Racing Team | 2:00.5800 |
| 19th | 10 | David Weir / Alain De Cadenet | Ford GT40 | Team Snake Speed | 2:06.3200 |
| 20th | 16 | Horst Mundschitz / Gerhard Kramer | Lotus 47 | Valvoline Racing Team | 2:06.5400 |
| 21st | 46 | Erwin Kremer / Günther Huber | Porsche 911 S | Auto Kremer | 2:07.3700 |
| 22nd | 43 | Roland Bauer / Dieter Schmid | Porsche 911 S | Paul-Ernst Strähle | 2:09.4600 |
| 23rd | 51 | Günter Steckkönig / Ferfried von Hohenzollern | Porsche 914/6 | Strähle KG | 2:09.5500 |
| 24th | 42 | Claude Haldi / Bernard Chenevière | Porsche 911 S | Porsche Club Romand | 2:09.5600 |
| 25th | 49 | Ernst Seiler / Peter Ettmüller | Porsche 914/6 | Hart Ski Racing Team | 2:09.7800 |
| 26th | 55 | Bengt Ekberg / Roland Larsson | Porsche 911 | Kurt Simonsen | 2:10.3000 |
| 27th | 47 | Ennio Bonomelli / Fiorenzo Genta | Porsche 911 | Ennio Bonomelli | 2:10.4000 |
| 28th | 53 | Mario Ilotte / Mario Ruspa | Porsche 911 | Jolly Club | 2:10.7400 |
| 29th | 50 | Peter Kaiser / Heinz Blind | Porsche 911 | Stuttgart Sports Car Club | 2:11.2800 |
| 30th | 44 | Clemens Schickentanz / Werner Zanders | Porsche 911 | Oldenkott Racing Team | 2:14.2800 |
| 31st | 41 | Sylvain Garant / Jean-Marie Masoneri | Porsche 911 | Wicky Racing Team | 2:15.3600 |