| 1st | 2 | Ronnie Peterson / Tim Schenken | Ferrari 312 PB | Spa Ferrari SEFAC | 1:24.7500 |
| 2nd | 1 | Jacky Ickx / Clay Regazzoni | Ferrari 312 PB | Spa Ferrari SEFAC | 1:24.9800 |
| 3rd | 3 | Brian Redman / Arturo Merzario | Ferrari 312 PB | Spa Ferrari SEFAC | 1:25.5900 |
| 4th | 5 | Reine Wisell / Jo Bonnier | Lola T280 Ford | Ecurie Bonnier | 1:25.9200 |
| 5th | 4 | Gérard Larrousse / Hughes de Fierlant | Lola T280 Ford | Ecurie Bonnier | 1:27.2300 |
| 6th | 6 | "Noris" / Ennio Bonomelli / Walter Dona | Porsche 908/02 | Scuderia Brescia Corse | 1:34.1400 |
| 7th | 7 | Reinhold Jöst / Gerhard Schüler | Porsche 908/03 | Reinhold Jöst | 1:34.6800 |
| 8th | 14 | Carlo Facetti / "PAM" | Abarth Osella SE-021 | Scuderia Brescia Corse | 1:34.8500 |
| 9th | 16 | Michel Dupont / Fabrizio Noe | Chevron B19 Ford | Michel Dupont | 1:37.3400 |
| 10th | 29 | Giorgio Pianta / Giorgio Schön | Lola T212 Ford | Giorgio Pianta | 1:37.9100 |
| 11th | 8 | Otto Stuppacher / Helmut Marko | Porsche 908/02 | Bosch Racing Team | 1:38.5800 |
| 12th | 31 | Jacques Cochet / Gérard Pillon | Lola T290 Ford | Scuderia Filipinetti | 1:38.8700 |
| 13th | 26 | Giorgio Danieli / Giuseppe Rossi | Lola T290 Ford | Giorgio Danieli | 1:39.4600 |
| 14th | 43 | Mario Casoni / "Pooky" | De Tomaso Pantera | Scuderia Brescia Corse | 1:39.5700 |
| 15th | 19 | Walter Frey / Peter Ettmüller | Chevron B19/21 Ford | Squadra Tartaruga | 1:39.9100 |
| 16th | 41 | Herbert Müller / Giancarlo Gagliardi | De Tomaso Pantera | Herbert Müller | 1:40.0300 |
| 17th | 18 | Gabriele Serblin / Jacopo Trivellato | Chevron B19 Ford | Gabriele Serblin | 1:40.2800 |
| 18th | 39 | Eris Tondelli / Mauro Formento | Tondelli BT Ford | Eris Tondelli | 1:40.6100 |
| 19th | 22 | Mario Ilotte / Angelo Mola / Franco Berruto / "PAM" / "Ipack" | Abarth 2000 | Scuderia Brescia Corse | 1:40.6300 |
| 20th | 44 | Ugo Locatelli / "Pal Joe" | De Tomaso Pantera | Valtellina Racing | 1:41.1700 |
| 21st | 35 | Peter Mattli / Hervé Bayard | Porsche 907 | Wicky Racing Team | 1:41.3100 |
| 22nd | 23 | Pietro Lo Piccolo / Leandro Terra | Ferrari Dino 206 S Spyder | Leandro Terra | 1:42.3200 |
| 23rd | 37 | "Pal Joe" / Piero Botalla | Abarth 1600 Sport | Citta dei Mille | 1:43.4800 |
| 24th | 38 | Maurizio Zanetti / Luigi Pozzo | Lola T212 Alfa Romeo | Monzeglio | 1:44.7700 |
| 25th | 53 | Paul Keller / Claude Haldi / "Gedehem" | Porsche 911 S | Porsche Club Romand | 1:45.0800 |
| 26th | 49 | Ennio Bonomelli / Pino Pica | Porsche 911 S | Ennio Bonomelli | 1:45.5000 |
| 27th | 56 | Erwin Kremer / John Fitzpatrick | Porsche 911 S | Kremer Porsche Racing | 1:46.0800 |
| 28th | 42 | José Juncadella / Fernando Baviera | De Tomaso Pantera | Escuderia Montjuich | 1:46.1800 |
| 29th | 54 | Claude Haldi / Bernard Chenevière | Porsche 911 S | Porsche Club Romand | 1:46.3400 |
| 30th | 36 | "Mascaleros" / Eugenio Tinghi | Porsche 906 | Vittorio Mascari | 1:48.7400 |
| 31st | 55 | Eberhard Sindel / Klaus Rang | Porsche 911 S | Liqui-Moly | 1:49.5500 |
| 32nd | 15 | Luciano Roiatti / Renzo Cattelan | Abarth Osella SE-021 | Luciano Roiatti | 1:50.7300 |
| 33rd | 11 | Bernd Becker / Karl-Heinz Tibor / Elmar Clever | Porsche 910 | Bernd Becker | 1:50.9800 |
| 34th | 46 | Georg Loos / Franz Pesch | Porsche 911 S | Gelo Racing Team | 1:51.7400 |
| 35th | 52 | Clemens Schickentanz / Willi Kauhsen | Porsche 911 S | Peter Kersten | 1:52.0300 |
| 36th | 62 | Bengt Ekberg / Roland Larsson / Dick Biström | Porsche 911 S | Kuberol Racing | 1:52.6800 |
| 37th | 45 | Spartaco Dini / Maurizio Micangeli | Ferrari 365 GTB/4 | Luigi Rinaldi | 1:53.2900 |
| 38th | 64 | Piero Monticone / Guido Fossati | Porsche 914/6 | Scuderia Brescia Corse | 1:53.6600 |
| 39th | 57 | Sergio Mingotti / Sergio Demetrio | Porsche 911 S | Nettuno | 1:58.1300 |
| 40th | 9 | André Wicky / Walter Brun | Porsche 908/02 | Wicky Racing Team | 2:14.2000 |
| 41st | 21 | Alceste Bodini | Chevron B19 Ford | Luciano Rassega | 2:21.3000 |