| 1st | 24 | Stuck / Posey | BMW 3.0 CSL | BMW Motorsport | 2:48.786 | 2:48.7860 |
| 2nd | 25 | Stuck / Redman / Moffat / Posey | BMW 3.0 CSL | BMW Motorsport | 2:49.200 | 2:51.6340 |
| 3rd | 59 | Gregg / Haywood | Porsche 911 Carrera RSR 3.0 | Brumos Porsche-Audi | 2:50.326 | 2:50.3260 |
| 4th | 75 | Greenwood / Thompson | Chevrolet Corvette C3 | John Greenwood | 2:51.387 | 2:51.3870 |
| 5th | 14 | Holbert / Forbes-Robinson | Porsche 911 Carrera RSR 3.0 | Holbert's Porsche-Audi | 2:54.918 | 2:54.9180 |
| 6th | 43 | Graves / O'Steen / Helmick | Porsche Carrera RSR | Ecurie Escargot | 2:55.750 | 2:55.7500 |
| 7th | 1 | Keyser / Sprowls / Contreras | Porsche 911 Carrera RSR 3.0 | Toad Hall Racing | 2:55.888 | 2:55.8880 |
| 8th | 3 | Theodoracopulos / Barber | Ford Capri RS | Ippocampos Racing | 2:55.904 | 2:55.9040 |
| 9th | 88 | Carter / DeLorenzo | Chevrolet Camaro | Maurice Carter | 2:56.179 | 2:56.1790 |
| 10th | 23 | Kemp / Baird | Porsche 911 Carrera RSR | Armorall Racing Team | 2:56.315 | 2:56.3150 |
| 11th | 30 | Dyer / Bienvenue | Porsche 911 Carrera RSR 3.0 | George Dyer | 2:56.452 | 2:56.4520 |
| 12th | 26 | Chitwood / Chitwood | Chevrolet Camaro | Tim Chitwood | 2:57.618 | 2:57.6180 |
| 13th | 79 | Callas / Cook / Gang | Porsche Carrera RSR | Michael Callas | 2:58.820 | 2:58.8200 |
| 14th | 5 | Harmon / Woodner | Porsche Carrera RSR | Bob Harmon | 2:59.078 | 2:59.0780 |
| 15th | 74 | Ridgely / Heimrath | Porsche Carrera RSR | Ludwig Heimrath | 2:59.645 | 2:59.6450 |
| 16th | 33 | Quintanilla / Loring | Porsche Carrera RSR | Roberto Quintanilla | 3:00.290 | 3:00.2900 |
| 17th | 2 | Muniz / *Gerber / *Muniz | BMW 3.0 CSL | Daniel Muniz | 3:02.036 | 3:02.0360 |
| 18th | 91 | Bolanos / Jourdain / Bolanos | Porsche Carrera RSR | Bolanos Racing | 3:03.381 | 3:03.3810 |
| 19th | 8 | Beasley / Jennings | Porsche Carrera RSR | Bob Beasley | 3:04.270 | 3:04.2700 |
| 20th | 12 | Smith / Young / Aiken | Chevrolet Corvette | Ford Smith | 3:04.306 | 3:04.3060 |
| 21st | 48 | Carusso / Vreeland / Sereix | Chevrolet Corvette | John Carusso | 3:05.841 | 3:05.8410 |
| 22nd | 73 | Christiansen / Myers | Chevrolet Camaro | Robert Christiansen | 3:07.488 | 3:07.4880 |
| 23rd | 32 | Orr / Jobe | Chevrolet Corvette C3 | E. F. Miller & Co. | 3:07.752 | 3:07.7520 |
| 24th | 17 | Gimondo / Tremblay | Chevrolet Camaro | Vince Gimondo | 3:08.409 | 3:08.4090 |
| 25th | 4 | Dickinson / Webbe / Theodoracopulos | Porsche 911 Carrera RSR 3.0 | George Dickinson | 3:08.446 | 3:08.4460 |
| 26th | 87 | Jones / Mignot | Ferrari 365 GTB/4 | Jones Motorsports | 3:09.319 | 3:09.3190 |
| 27th | 71 | Johnson / Shaw | AMC Gremlin | Levi's Team Highball | 3:09.387 | 3:09.3870 |
| 28th | 22 | Kreider / DeMarco | Chevrolet Corvette | Dale Kreider | 3:10.693 | 3:10.6930 |
| 29th | 54 | Tunstall / Jenkins | Porsche Carrera RSR | Southpoint Porsche | 3:10.781 | 3:10.7810 |
| 30th | 51 | Hotchkis / Kirby / Jones | Porsche 914/6 | Johnson-Bozzoni Porsche-Audi | 3:12.342 | 3:12.3420 |
| 31st | 92 | Tillson / Oest | Porsche Carrera RSR | Oest-Tillson Racing | 3:12.561 | 3:12.5610 |
| 32nd | 67 | McClain / White | Porsche 911 S | David McClain | 3:12.802 | 3:12.8020 |
| 33rd | 69 | Montalvo / *Grob | Ford Escort | Juan Montalvo | 3:13.229 | 3:13.2290 |
| 34th | 77 | Noseda / Mummery / *Small | Chevrolet Camaro | Ralph Noseda | 3:13.246 | 3:13.2460 |
| 35th | 95 | Tabe / Marron / Martinez | Porsche Carrera RSR | Sergio Tabe | 3:13.310 | 3:13.3100 |
| 36th | 68 | Febles / Cruz | Porsche Carrera RSR | Diego Febles Racing | 3:13.841 | 3:13.8410 |
| 37th | 34 | Drolsom / Nagel | Porsche 911 S | George Drolsom | 3:14.187 | 3:14.1870 |
| 38th | 62 | Chapman / Hood / Dumont | Chevrolet Corvette | Scott Chapman | 3:15.436 | 3:15.4360 |
| 39th | 46 | Buzbee / Ross / Frates | Datsun 240Z | Buzbee Tropical Fish | 3:15.456 | 3:15.4560 |
| 40th | 84 | Speakman / Maffucci | Datsun 240Z | Bob Speakman | 3:16.044 | 3:16.0440 |
| 41st | 76 | Greenwood / Voeltz / English | Chevrolet Corvette | Kidd-America Racing | 3:16.179 | 3:16.1790 |
| 42nd | 44 | Garcia / Naon / Freyre | Porsche 911 S | Montura Ranch Estates | 3:16.994 | 3:16.9940 |
| 43rd | 60 | Bond / Rollin / Belperche | Porsche 911 | Rusty Bond | 3:17.809 | 3:17.8090 |
| 44th | 10 | Gebhardt / Beilcke / Grinbold | BMW 2002 | Alf Gebhardt | 3:18.954 | 3:18.9540 |
| 45th | 56 | Gano / Williamson / Parson | Chevrolet Camaro | Charles Gano | 3:19.255 | 3:19.2550 |
| 46th | 18 | Wolters / Swanson | Chevrolet Camaro | Terry Wolters | 3:20.133 | 3:20.1330 |
| 47th | 40 | Hastings / Bunch | Jaguar XKE | John Hastings | 3:20.849 | 3:20.8490 |
| 48th | 28 | Fernandez / Gonzalez / Chevres | Lotus Elan | Bonky Fernandez | 3:21.063 | 3:21.0630 |
| 49th | 55 | Simon / Stumpff / Molina | Ford Mustang | Henry Simon | 3:22.081 | 3:22.0810 |
| 50th | 90 | Walle / Reddy | Mazda RX-3 | Ray Walle Mazda | 3:22.259 | 3:22.2590 |
| 51st | 9 | Ansley / *Connelly / *Woodall | Chevrolet Corvette | Tony Ansley | 3:22.954 | 3:22.9540 |
| 52nd | 72 | Arnold / Doran | Chevrolet Corvette | Bill Arnold | 3:24.315 | 3:24.3150 |
| 53rd | 47 | Groleau / Brent / Sweeney | Datsun 240Z | Jacques Groleau | 3:25.157 | 3:25.1570 |
| 54th | 86 | Stefl / Fordyce | Chevrolet Corvette | Dennis Stefl | 3:25.228 | 3:25.2280 |
| 55th | 82 | Scott / MacDonald / Neuhoff | AMC Gremlin | Bill Scott Racing | 3:25.266 | 3:25.2660 |
| 56th | 85 | Hulen / Coupland / Causey | Porsche 914/6 | John E. Hulen | 3:25.904 | 3:25.9040 |
| 57th | 49 | Potter / Gray / Keller | Ford Mustang | Neil Potter | 3:27.169 | 3:27.1690 |
| 58th | 50 | Vazquez / Quintana / Yenko | Porsche 911 S | Pedro Vasquez, Jr. | 3:27.703 | 3:27.7030 |
| 59th | 63 | Punch / Waugh / Mendenhall | Porsche 911 | Doell Enterprises | 3:30.282 | 3:30.2820 |
| 60th | 31 | Garcia, Jr. / Arzeno / Gonzalez | BMW 2002 | Luiz Garcia, Jr. | 3:31.407 | 3:31.4070 |
| 61st | 29 | Mabrito / Steel | Datsun 240Z | Bruce Mabrito | 3:31.932 | 3:31.9320 |
| 62nd | 39 | Donley / Scott / Smith | MGB | Dean Donley | 3:32.538 | 3:32.5380 |
| 63rd | 53 | Mollin / Riley | Volvo 142 | Arthur Mollin | 3:35.953 | 3:35.9530 |
| 64th | 66 | Craw / Norburn | BMW 2002 | Miller & Norburn | 3:36.566 | 3:36.5660 |
| 65th | 37 | Fraser / Archer | Datsun 510 | Tom Fraser | 3:45.424 | 3:45.4240 |
| 66th | 58 | Oyler / Church / *Aden | Renault R12 | Professional Paint & Body | 3:46.641 | 3:46.6410 |
| 67th | 914 | Schmid / Bundy | Porsche 914 | Holbert's Porsche-Audi | 3:47.744 | 3:47.7440 |
| 68th | 52 | Kleinschmidt / Andrus / Culpepper | MGB | Charles Kleinschmidt | 3:47.827 | 3:47.8270 |
| 69th | 41 | Jones, Jr. / Currin / Faul | Chevrolet Camaro | Herb Jones, Jr. | 3:50.950 | 3:50.9500 |
| 70th | 78 | Ross / Beres | Ford Mustang | Tom Ross | 4:01.814 | 4:01.8140 |
| 71st | 83 | McAlpine / Miller / Hardling | Austin Mini-Cooper | PPC Racing | 4:17.542 | 4:17.5420 |
| 72nd | 27 | Davis / Almeida / DeGirolamo | Chevrolet Corvette | Robert E. Davis | 4:17.730 | 4:17.7300 |
| 73rd | 81 | Craven / Horniman | Ford Pinto | Dean Craven | 4:21.900 | 4:21.9000 |
| 74th | 03 | Dann / Bond | Opel GT | Ozone Industries | 4:28.048 | 4:28.0480 |