| 1974 | 58 | Escuderia Montjuich | Porsche Carrera RSR | GTS | Dunlop | — | — | retired | 93 | Claude Haldi / José Maria Fernandez / Jean-Marc Seguin |
| 1974 | 59 | Pierre Mauroy | Porsche Carrera RSR | GTS | Dunlop | 13. | 7. | classified | 277 | Anny-Charlotte Verney / Pierre Mauroy / Martine Rénier |
| 1974 | 60 | Louis Meznarie | Porsche Carrera RSR | GTS | Dunlop | — | — | retired | 23 | Hubert Striebig / Hugues Kirschhoffer / Jean-Louis Chateau |
| 1974 | 61 | Robert Buchet | Porsche Carrera RSR | GTS | Dunlop | — | — | retired | 134 | Claude Ballot-Léna / Vic Elford |
| 1974 | 62 | Ecurie Francorchamps | Porsche Carrera RSR | GTS | Dunlop | — | — | retired | 4 | Hughes de Fierlant / Richard Bond / Jean Beurlys (Jean Blaton) |
| 1974 | 63 | Jean-Claude Lagniez | Porsche Carrera RSR | GTS | Dunlop | 14. | 8. | classified | 274 | Jean-Claude Lagniez / Gérard Meo / Jean Egreteaud |
| 1974 | 64 | Polifac Gelo Racing Team | Porsche Carrera RSR | GTS | Firestone | — | — | retired | 4 | Georg Loos / Clemens Schickentanz / Jürgen Barth |
| 1974 | 66 | Porsche Club Romand | Porsche Carrera RSR | GTS | Dunlop | 7. | 3. | classified | 312 | Bernard Chenevière / Peter Zbinden / Michel Dubois |
| 1974 | 67 | Porsche Club Romand | Porsche Carrera RSR | GTS | Dunlop | — | — | retired | 4 | William Vollery / Eric Chapuis / Roger Dorchy |
| 1974 | 68 | Samson Kremer Team | Porsche Carrera RSR | GTS | Dunlop | — | — | retired | 43 | Hans Heyer / Paul Keller / Erwin Kremer |
| 1974 | 69 | Lucien Nageotte | Porsche Carrera RSR | GTS | Dunlop | 12. | 6. | classified | 277 | Lucien Nageotte / Pierre Laffeach / Jean-François Jaunet / Dominique Thiry |
| 1974 | 70 | ASA Cachia | Porsche Carrera RSR | GTS | Dunlop | 10. | 4. | classified | 288 | Raymond Touroul / Henri Cachia / Denis Rua |
| 1974 | 72 | Polifac Gelo Racing Team | Porsche Carrera RSR | GTS | Firestone | — | — | retired | 227 | Franz Pesch / Jürgen Barth / Georg Loos |
| 1974 | 73 | Paul Blancpain - Toad Hall (CH/USA) | Porsche Carrera RSR | GTS | Goodyear | 20. | 11. | classified | 247 | Mike Keyser / Milt Minter / Paul Blancpain |
| 1975 | 62 | Escuderia Montjuich | Porsche Carrera RSR | GTS | Michelin | — | — | — | 0 | Juan Fernandez / Franklin Perez / Claude Haldi |
| 1975 | 67 | Anny Charlotte Verney | Porsche 911 Carrera 3l | GT | Dunlop | 11. | 2. | classified | 294 | Anny-Charlotte Verney / Yvette Fontaine / Corinne Koppenhague (Tarnaud) |
| 1975 | 84 | Gerhard Maurer | Porsche Carrera RS | GT | Dunlop | 10. | 1. | classified | 295 | Gerhard Maurer / Christian Beez / Eugen Straehl |
| 1976 | 49 | Gelo Racing Team | Porsche Carrera | V | Goodyear | — | — | retired | 4 | Clemens Schickentanz / Howden Ganley |
| 1976 | 50 | Thierry Perrier | Porsche Carrera RSR | IV | Dunlop | 18. | 4. | classified | 273 | Thierry Perrier / Guillaume de Saint-Pierre / Martine Rénier |
| 1976 | 52 | Gérard Méo | Porsche Carrera RSR | V | Michelin | 6. | 2. | classified | 314 | Raymond Touroul / Alain Cudini |
| 1976 | 53 | ASA Cachia | Porsche Carrera RS | V | Dunlop | 13. | 6. | classified | 288 | Thierry Sabine / Philippe Dagoreau / Jean-Claude Andruet |
| 1976 | 55 | Almeras Fréres | Porsche Carrera RSR | V | Dunlop | 23. | 7. | classified | 246 | Christian Poirot / René Boubet |
| 1976 | 62 | Philippe Dagoreau | Porsche Carrera RSR | IV | Dunlop | — | — | retired | 4 | Christian Bussi / Philippe Gurdjian / Christian Gouttepifre |
| 1976 | 63 | Egon Evertz KG | Porsche Carrera RSR | V | Dunlop | 9. | 3. | classified | 303 | Heinz Martin / Hartwig Bertrams / Egon Evertz |
| 1976 | 67 | Joël Laplacette | Porsche Carrera RSR | IV | Michelin | 17. | 3. | classified | 274 | Joël Laplacette / Alain Leroux / Georges Bourdillat |
| 1976 | 71 | Segolen | Porsche Carrera RSR | IV | Michelin | 12. | 1. | classified | 292 | Segolen (André Gahinec) / Maurice Ouviére / 'Ladagi' (Jean-Yves Gadal) |
| 1976 | 72 | William Vollery | Porsche Carrera RS | GTX | Michelin | — | — | retired | 4 | Jean-Pierre Aeschlimann / Roger Dorchy / William Vollery |
| 1976 | 77 | Tom Vaugh | Porsche Carrera RS | IMSA | Dunlop | 14. | 1. | classified | 285 | Tom Waugh / John Rulon-Miller / Pierre Laffeach |
| 1976 | 78 | Diego Febles Racing | Porsche Carrera RSR | IMSA | Goodyear | — | — | retired | 4 | Diego Febles / Alec Poole / Hiram Cruz |
| 1976 | 83 | Paul Rilly | Porsche Carrera RSR | IMSA | — | — | — | — | 0 | Paul Rilly / Robert Le Veve / Joël Mouëtron |
| 1977 | 47 | Anny Charlotte Verney | Porsche Carrera RS | V | Dunlop | 18. | 2. | classified | 254 | Anny-Charlotte Verney / René Metge / Dany Snobeck / Hubert Striebig |
| 1977 | 61 | Christian Gouttepifre | Porsche Carrera RS | IV | Dunlop | 10. | 2. | classified | 282 | Christian Gouttepifre / Philippe Malbran / Alain Leroux |
| 1977 | 70 | JMS Racing / ASA Cachia | Porsche Carrera | IMSA | Dunlop | 12. | 3. | classified | 276 | Simon de Lautour / Jean-Pierre Delaunay / Jacques Guérin |
| 1977 | 77 | Wynn's International (B/USA) | Porsche Carrera RSR | IMSA | Goodyear | 20. | 6. | classified | 247 | Dennis Aase / Bob Kirby / John Hotchkis |
| 1977 | 78 | Charles Ivey Racing | Porsche Carrera RSR | IMSA | Goodyear | — | — | retired | 4 | John Rulon-Miller / John Cooper / Peter C. Lovett |
| 1977 | 79 | Ravenel Freres | Porsche Carrera RS | IMSA | Dunlop | 14. | 4. | classified | 275 | Jean-Louis Ravenel / Jacky Ravenel / Jean-Marie Détrin |
| 1977 | 80 | Bernard Béguin | Porsche Carrera RS | IMSA | Dunlop | — | — | retired | 4 | Bernard Béguin / René Boubet / Jean-Claude Briavoine |
| 1977 | 96 | GVA Porsche Club Romand | Porsche Carrera Turbo | GTX | Michelin | — | — | retired | 4 | André Savary / Jean-Robert Corthay / Antoine Salamin |