| Pos |
# |
Driver |
Car |
Time |
| 1 | 86 | Ronnie Peterson/Tim Schenken | Ferrari 312PB | 1:47,387 |
| 2 | 85 | Jacky Ickx/Mario Andretti | Ferrari 312PB | 1:47,864 |
| 3 | 10 | Derek Bell/Carlos Pace | Mirage M6 Ford | 1:48,342 |
| 4 | 87 | Brian Redman/Arturo Merzario | Ferrari 312PB | 1:48,840 |
| 5 | 90 | Reine Wisell/Gérard Larrousse | Lola T280 Ford | 1:48,942 |
| 6 | 20 | Gijs van Lennep/Tony Adamowicz | Mirage M6 Ford | 1:50,618 |
| 7 | 33 | Milt Minter/Scooter Patrick | Alfa Romeo T33/3 | 1:53,236 |
| 8 | 42 | Reinhold Jöst/Mario Casoni | Porsche 908/03 | 1:55,269 |
| 9 | 29 | Fred van Beuren Jr/John Buffum | Chevron B21 Ford | 1:57,496 |
| 10 | 68 | Tony Dean/Bobby Brown | Porsche 908/02 | 1:59,064 |
| 11 | 25 | Peter Schuster/Paul Perez Gama | Chevron B19 Ford | 2:01,371 |
| 12 | 11 | Dave Jordan/Johnnie Crean | Chevron B21 Ford | 2:01,823 |
| 13 | 52 | Hugh Kleinpeter/Tony Belcher | Chevron B21 Ford | 2:04,359 |
| 14 | 55 | Roger McCaig/Maurice McCaig | Lola T212 Ford | 2:04,844 |
| 15 | 66 | Mike Murray/Ike Knupp | Chevrolet Corvette | 2:05,825 |
| 16 | 93 | Bob Fisher/Tom Gloy | Chevron B16 Ford | 2:06,236 |
| 17 | 23 | Wilbur Pickett/Charlie Kemp | Chevrolet Corvette Sting Ray | 2:07,045 |
| 18 | 26 | Douglas Shierson/Bill Barber | Chevron B19 Ford | 2:07,288 |
| 19 | 21 | Sam Posey/David Hobbs | Ferrari 365 GTB/4 | 2:09,981 |
| 20 | 22 | Jean-Pierre Jarier/Gregg Young | Ferrari 365 GTB/4 | 2:10,192 |
| 21 | 59 | Hurley Haywood/Peter Gregg | Porsche 911S | 2:11,981 |
| 22 | 57 | Dave Heinz/Robert R. Johnson | Chevrolet Corvette | 2:12,090 |
| 23 | 16 | Michael Keyser/Bob Beasley | Porsche 911S | 2:13,104 |
| 24 | 28 | Alain De CadenetMartin Birrane | Duckhams LM Ford | 2:08,293 |
| 25 | 37 | Pete Sherman/Pete Lo Bianco | Chevron B19 Ford | 2:10,324 |
| 26 | 35 | Fred Kepler/John Orr | Chevrolet Corvette | 2:11,110 |
| 27 | 31 | Al Alden/Neil Wiernicki/Michael Wiernicki | Chevrolet Corvette | 2:11,115 |
| 28 | 61 | Jim Locke/Bob Bailey | Porsche 911S | 2:12,028 |
| 29 | 88 | Edwin G.Abate/Rolf Soltan | Porsche 910 | 2:11,759 |
| 30 | 18 | Tony DeLorenzo/Charles Reynolds | Ferrari 365 GTB/4 | 2:13,200 |
| 31 | 43 | John O'Steen/Dave Helmick | Porsche 911S | 2:13,665 |
| 32 | 64 | Bob Baechle/David Laughlin | Chevrolet Corvette | 2:13,668 |
| 33 | 63 | Michael Oleyar/Robert Luebbe | Chevrolet Corvette | 2:13,554 |
| 34 | 49 | John Greenwood/Dick Smothers | Chevrolet Corvette | 2:13,705 |
| DNQ | 89 | Dieter Oest/Mike Tillson | Porsche 911T | 2:17,273 |
| DNQ | 77 | George Stone/Bruce Jennings | Porsche 911T | 2:17,771 |
| DNQ | 80 | Fritz Hochreuter/Klaus Bytzek | Porsche 911 | 2:22,279 |
| DNQ | 27 | Arthur Mollin/Richard Weiss | Porsche 911S | 2:23,310 |
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