Grelha de partida
| A Negro O piloto que efectuou o melhor tempo nos treinos, em itálico o piloto que iniciou a corrida |
| Linha 1 | 15 - Jean Rondeau / ITT LePoint Henri Pescarolo/Jean Ragnoti Rondeau M 379 B Ford - 3:47.9 | 70 - Dick Barbour Racing Brian Redman/Dick Barbour/John Fitzpatrick Porsche 935 K3 - 3:48.4 |
| Linha 2 | 42 - Porsche Kremer Racing Team/ Gojjy Rolf Stommelen/Tetsu Ikuzawa/Axel Plankenhorn Porsche 935 K3 - 3:49.8 | 9 - Equipe Liqui Moly / Martini Racing Reinhold Joest/Jacky Ickx Porsche 908/80 - 3:50.0 |
| Linha 3 | 16 - Jean Rondeau / ITT LePoint Jean Rondeau/Jean-Pierre Jaussaud Rondeau M 379 B Ford - 3:50.2 | 8 - Alain de Cadenet Alain de Cadenet/Francois Migault De Cadenet Le Mans Ford - 3:50.6 |
| Linha 4 | 12 - Dome Co Ltd. Chris Craft/Bob Evans Dome RL 80 Ford - 3:50.7 | 41 - Porsche Kremer Racing Team/ Team Malardeau Ted Field/Danny Ongais/Jean-Louis Lafosse Porsche 935 K3 - 3:51.3 |
| Linha 5 | 5 - Ecurie WM Esso Guy Frequelin/Roger Dorchy WM P 79/80 Peugeot - 3:51.9 | 45 - Gelo Racing Team Bob Wollek/Helmut Kelleners Porsche 935 - 3:53.1 |
| Linha 6 | 49 - Vegla Racing Team Dieter Schornstein/Harald Grohs/Gotz von Tschirnhaus Porsche 935 - 3:54.0 | 7 - Ecurie WM Esso Serge Saulnier/Jean-Louis Bousquet/Denis Morin WM P 79/80 Peugeot - 3:54.5 |
| Linha 7 | 1 - André Chevalley Racing / Longines Patrick Gaillard/Francois Trisconi/Andre Chevalley ACR Longines Ford - 3:55.7 | 71 - Dick Barbour Racing Bobby Rahal/Allan Moffat/Bob Garretson Porsche 935 K3 - 3:56.1 |
| Linha 8 | 6 - Ecurie WM Esso Max Mamers/Jean-Daniel Raulet WM P 79/80 Peugeot - 3:36.5 | 73 - JLP Racing John Paul Sr./John Paul Jr./Guy Edwards Porsche 935 K3 JLP-2 - 3:56.8 |
| Linha 9 | 77 - JMS Racing / Charles Pozzi Jean-Claude Andruet/Claude Ballot-Lena Ferrari 512 BB - 3:58.4 | 46 - Meccarillos Racing Team Claude Haldi/Bernard Beguin/Volkert Merl Porsche 935 - 3:58.9 |
| Linha 10 | 17 - Jean Rondeau / Belga Philippe Martin/Jean-Michel Martin/Gordon Spice Rondeau M 379 B Ford - 3:59.0 | 44 - Charles Ivey Racing Peter C. Lovett/John Cooper/Dudley Wood Porsche 935 K3 - 4:00.0 |
| Linha 11 | 85 - Sun Systems / Whittington Brothers Racing Don Whittington/Dale Whittington/Hurley Haywood Porsche 935 K3 "Warthog II" - 4:00.1 Um dos irmãos Whittington iniciou a corrida | 68 - Racing Associates Inc Skeeter McKitterick/Charles Mendez/Leon Walger Porsche 935 K3 - 4:02.5 |
| Linha 12 | 84 - Dominique Lacaud / BMW Motorsport GmbH Hans-Joachim Stuck/Hans-Georg Burger/Dominique Lacaud BMW M1 - 4:02.5 | 76 - JMS Racing / Charles Pozzi Pierre Dieudonne/Jean Xhenceval/Herve Regout Ferrari 512 BB - 4:02.6 |
| Linha 13 | 83 - BMW France Didier Pironi/Dieter Quester/Marcel Mignot BMW M1 - 4:02.7 | 51 - Scuderia Lancia Corse Hans Heyer/Bernard Darniche/Teo Fabi Lancia Beta Montecarlo Turbo - 4:03.2 |
| Linha 14 | 43 - Malardeau Kremer Racing Xavier Lapeyre/Anny Charlotte Verney/Jean-Louis Trintignant Porsche 935 K3 - 4:04.1 | 53 - Jolly Club / Lancia Corse Carlo Facetti/Martino Finotto Lancia Beta Montecarlo Turbo - 4:05.2 |
| Linha 15 | 69 - Racing Associates Inc Bob Akin/Paul Miller/Ralph Kent-Cooke Porsche 935 K3 - 4:05.3 | 52 - Scuderia Lancia Corse Piercarlo Ghinzani/Markku Alen/Gianfranco Brancatelli Lancia Beta Montecarlo Turbo - 4:06.3 |
| Linha 16 | 95 - BMW ZOL Francois Servanin/Laurent Ferrier/Pierre-Francois Rousselot BMW M1 - 4:08.2 | 28 - Scuderia Torino Corse (March Engineering) Lella Lombardi/Mark Thatcher Osella PA 8 BMW - 4:08.6 |
| Linha 17 | 82 - March Racing Ltd Manfred Winkelhock/Patrick Neve/Michael Korten BMW M1 March - 4:09.4 | 3 - Porsche System Derek Bell/Al Holbert Porsche 924 Carrera GT - 4:10.8 |
| Linha 18 | 24 - ROC - Sociéte Yacco Marc Sourd/Bernard Verdier Lola T 298 ROC Chrysler-Simca - 4:10.9 | 75 - JMS Racing / Charles Pozzi Lucien Guitteny/Gerard Bleynie/Jean-Paul Libert Ferrari 512 BB - 4:11.1 |
| Linha 19 | 96 - Garage du Bac Frederic Alliot/Jacques Guerin BMW M1 - 4:11.7 | 89 - Hervé Poulain Herve Poulain/Pierre Destic/Dany Snobeck Porsche 935 - 4:12.9 |
| Linha 20 | 72 - Dick Barbour Racing / Wynn's Int. Bob Kirby/Mike Scherwin/Bob Harmon Porsche 935 K3 - 4:13.5 | 20 - Jean-Philipe Grand Jean-Philippe Grand/Yves Courage Chevron B 36 BMW - 4:14.0 |
| Linha 21 | 79 - Scuderia Supercar Bellancauto SRL Spartaco Dini/Fabrizio Violati/Maurizio Micangeli Ferrari 512 BB - 4:14.3 | 27 - Michel Elkoubi / Primagaz Patrick Perrier/Pierre Yver Lola T 298 BMW - 4:14.4 |
| Linha 22 | 23 - ROC - Sociéte Yacco Michel Dubois/Florian Vetsch/Christian Debias Lola T 298 ROC Chrysler-Simca - 4:16.0 | 2 - Porsche System Andy Rouse/Tony Dron Porsche 924 Carrera GT - 4:16.5 |
| Linha 23 | 74 - North American Racing Team Jean-Pierre Delaunay/Preston Henn Ferrari 512 BB - 4:16.6 Não participou na corrida | 29 - Dorset Racing Associates Martin Birrane/Nick Mason/Peter Clarke Lola T 297 Ford - 4:16.7 |
| Linha 24 | 4 - Porsche System Jurgen Barth/Manfred Schurti Porsche 924 Carrera GT - 4:17.1 | 25 - ROC - Sociéte Yacco Bruno Sotty/Philippe Hesnault/Daniel Laurent Chevron B 36 ROC Chrysler-Simca - 4:17.2 |
| Linha 25 | 22 - Hubert Striebig Michel Pignard/Mario Ketterer/Hubert Striebig TOJ SM 01 BMW - 4:17.4 | 94 - Equipe Alméras Fréres Jacques Almeras/Jean-Marie Almeras/Marianne Hoepfner Porsche 934 - 4:18.9 |
| Linha 26 | 91 - ASA Cachia Christian Bussi/Bernard Salam/Cyril Grandet Porsche 934 - 4:25.3 | 80 - Diego Febles Racing Armando Gonzales/Diego Febles/Francisco Romero Porsche 934 - 4:26.3 |
| Linha 27 | 90 - Georges Bourdillat Georges Bourdillat/Alain-Michel Bernard/Pascal Ennequin Porsche 934 - 4:26.4 | 86 - Z & W Enterprises Inc Ernesto Soto/Pierre Honegger/Mark Hutchins Mazda RX-7 (Holman & Moody) - 4:36.1 |
| Linha 28 | 93 - Thierry Perrier Thierry Perrier/Roger Carmillet Porsche 911 SC (Ethanol) - 4:37.6 | 78 - Rosso Racing / Emka Productions Steve O Rourke/Simon Phillips/Richard Down Ferrari 512 BB - 4:19.7 O carro participou como primeira reserva IMSA tendo lugar na última posição da grelha. |
