| 1st | 1 | Jo Siffert / Vic Elford | Porsche 908 | Porsche System Engineering, Ltd. | 1:10.2000 |
| 2nd | 5 | Lucien Bianchi / Jacky Ickx | Ford GT40 | J. W. Automotive Engineering, Ltd. | 1:10.8000 |
| 3rd | 2 | Hans Herrmann / Tetsu Ikuzawa / Jo Siffert | Porsche 908 | Porsche System Engineering, Ltd. | 1:11.1000 |
| 4th | 3 | Scooter Patrick / Richard Attwood / Joe Buzzetta | Porsche 908 | Porsche System Engineering, Ltd. | 1:12.0000 |
| 5th | 4 | George Follmer / Joe Buzzetta | Porsche 908 | Porsche System Engineering, Ltd. | 1:12.3000 |
| 6th | 11 | Jo Bonnier / Chuck Parsons | Lola T70 Mk.3 GT Chevrolet | Ecurie Bonnier | 1:12.4000 |
| 7th | 6 | Paul Hawkins / David Hobbs | Ford GT40 | J. W. Automotive Engineering, Ltd. | 1:12.6000 |
| 8th | 76 | Dick Thompson / Ray Heppenstall | Howmet TX Continental | Howmet Corporation | 1:13.6000 |
| 9th | 67 | Hugh Dibley / Bob Tullius | Howmet TX Continental | Howmet Corporation | 1:14.6000 |
| 10th | 10 | John Woolfe / David Piper | Chevron B12 Repco | John Woolfe Racing | 1:16.9500 |
| 11th | 33 | Horst Kwech / John Martino | Alfa Romeo T33/2 | Ausca Racing, Inc. | 1:17.0000 |
| 12th | 88 | Werner Frank / Ralph Trieschmann | Porsche 906 E | Foreign Car Sales | 1:17.4000 |
| 13th | 21 | Charlie Kolb / Ricardo Rodriguez | Ferrari Dino 206 S | North American Racing Team (Luigi Chinetti, Sr.) | 1:17.8000 |
| 14th | 9 | Don Yenko / Dave Morgan | Chevrolet Corvette 427 | Sunray-DX Oil Co. | 1:18.1000 |
| 15th | 7 | William Wonder / Ray Cuomo / Raymond Caldwell | Ford GT40 | William M. Wonder, Inc. | 1:19.1000 |
| 16th | 14 | Bob Bailey / Jim Locke | Porsche 906 LE | B & B Motors. Ltd. | 1:20.1000 |
| 17th | 12 | Bob Johnson / Robert R. Johnson | Chevrolet Corvette 427 | Robert Johnson | 1:20.5000 |
| 18th | 58 | Jacques Duval / Jean-Paul Ostiguy | Porsche 906 | Jacques Duval | 1:20.9000 |
| 19th | 47 | Andre Prefontaine / Peter Roberts | Lotus 47 | Andre Prefontaine | 1:21.2000 |
| 20th | 22 | Bob Grossman / Ronnie Bucknum | Ferrari 275 GTB/4 | North American Racing Team (Luigi Chinetti, Sr.) | 1:24.3000 |
| 21st | 59 | Bert Everett / Peter Gregg | Porsche 911 T | Brumos Porsche Corp. | 1:25.6000 |
| 22nd | 99 | Sidney Finkel / James Sutter | Shelby GT350 | Pegasus Racing Team | 1:28.1000 |
| 23rd | 86 | Craig Hill / Bill Brack | Triumph GT6 | Sports Cars Unlimited, W. Clarkson | 1:29.0000 |
| 24th | 73 | Clive Baker / Paul Richards / Jim Baker | Austin-Healey Sprite | Baker Motor Co., Inc. | 1:31.3000 |
| 25th | 94 | Ralph Meaney / Alex Dearborn | Porsche 911 | Ralph Meaney | 1:32.0000 |
| 26th | 97 | William Herrington / Rick Mansfield / Jerry Walsh | MGB GT | Herrington Motors, Inc. | 1:35.1000 |
| 27th | 37 | Dieter Oest / Nick Davidson | Porsche 904 GTS | Dieter Oest | 1:36.8000 |
| 28th | 93 | Arthur Mollin / Art Riley | TVR Grantura | Arthur Mollin Racing | 1:42.3000 |