| 1st | 28 | David Piper / Brian Redman | Porsche 917 K | David Piper Auto Racing |
| 2nd | 6 | Andrea de Adamich / Piers Courage | Alfa Romeo T33/3 | Autodelta |
| 3rd | 2 | Luis Di Palma / Carlos Marincovich | Berta LR Ford | Berta |
| 4th | 12 | Alex Soler-Roig / Jochen Rindt | Porsche 908/02 | Escuderia Nacional |
| 5th | 30 | Richard Broström / Masten Gregory | Porsche 908/02 | Sport Cars Brostrom |
| 6th | 34 | Hans Laine / Gijs van Lennep | Porsche 908/02 | Racing Team AAW |
| 7th | 4 | Nanni Galli / Rolf Stommelen | Alfa Romeo T33/3 | Autodelta |
| 8th | 18 | Jo Bonnier / Reine Wisell | Lola T70 Mk.3B GT Chevrolet | Ecurie Bonnier |
| 9th | 10 | Jean-Pierre Beltoise / Henri Pescarolo | Matra-Simca MS630/650 | Equipe Matra |
| 10th | 20 | Ronnie Peterson / Jorge Cupeiro | Lola T70 Mk.3B GT Chevrolet | Ecurie Bonnier |
| 11th | 22 | Jackie Oliver / Carlos Reutemann | Lola T70 Mk.3B GT Chevrolet | Ulf Norinder |
| 12th | 50 | Teddy Pilette / Nestor Garcia-Veiga | Lola T70 Mk.3B GT Chevrolet | Racing Team VDS |
| 13th | 38 | Tony Dean / Eduardo Copello | Porsche 908/02 | A. G. Dean |
| 14th | 26 | Chris Craft / Richard Attwood | Lola T70 Mk.3B GT Chevrolet | David Piper Autoracing |
| 15th | 14 | José Juncadella / Juan Fernandez | Porsche 908/02 | Escuderia Montjuich |
| 16th | 40 | Alain De Cadenet / Carlos Pairetti | Porsche 908/02 | Ecurie Evergreen |
| 17th | 36 | Willi Kauhsen / Herbert Schultze | Porsche 908/02 | German BG Racing Team |
| 18th | 42 | Barrie Smith / Ed Swart | Lola T70 Mk.3B GT Chevrolet | Avalon Racing |
| 19th | 32 | Hans-Dieter Dechent / Gerhard Koch | Porsche 908/02 | Martini International |
| 20th | 46 | Trevor Taylor / Peter Gethin | Lola T70 Mk.3B GT Chevrolet | Sid Taylor |
| 21st | 24 | Louis Morand / Gérard Pillon | Lola T70 Mk.3B GT Chevrolet | Louis Morand |
| 22nd | 8 | Jonathan Williams / Maurizio Montagnari | Serenissima | Serenissima |
| 23rd | 44 | Jacques Rey / Edgar Berney | Lola T70 Mk.3B GT Chevrolet | Rey Racing |
| 24th | 16 | Pablo Bréa / Félix Serra | Ford GT40 | Escuderia Montjuich |
| 25th | 52 | David Prophet / Carlos Pascualini | Lola T70 Mk.3 GT Chevrolet | David Prophet |
| 26th | 48 | Dominique Martin / Piers Forester | Ford GT40 | E.S.C.A. Zitro |