| 1st | 24 | Stuck / Posey | BMW 3.0 CSL | BMW Motorsport | 2:48.7860 | 178.4924 |
| 2nd | 59 | Gregg / Haywood | Porsche 911 Carrera RSR 3.0 | Brumos Porsche-Audi | 2:50.3260 | |
| 3rd | 75 | Greenwood / Thompson | Chevrolet Corvette C3 | John Greenwood | 2:51.3870 | |
| 4th | 25 | Stuck / Redman / Moffat / Posey | BMW 3.0 CSL | BMW Motorsport | 2:51.6340 | |
| 5th | 14 | Holbert / Forbes-Robinson | Porsche 911 Carrera RSR 3.0 | Holbert's Porsche-Audi | 2:54.9180 | |
| 6th | 43 | Graves / O'Steen / Helmick | Porsche Carrera RSR | Ecurie Escargot | 2:55.7500 | |
| 7th | 1 | Keyser / Sprowls / Contreras | Porsche 911 Carrera RSR 3.0 | Toad Hall Racing | 2:55.8880 | |
| 8th | 3 | Theodoracopulos / Barber | Ford Capri RS | Ippocampos Racing | 2:55.9040 | |
| 9th | 88 | Carter / DeLorenzo | Chevrolet Camaro | Maurice Carter | 2:56.1790 | |
| 10th | 23 | Kemp / Baird | Porsche 911 Carrera RSR | Armorall Racing Team | 2:56.3150 | |
| 11th | 30 | Dyer / Bienvenue | Porsche 911 Carrera RSR 3.0 | George Dyer | 2:56.4520 | |
| 12th | 26 | Chitwood / Chitwood | Chevrolet Camaro | Tim Chitwood | 2:57.6180 | |
| 13th | 79 | Callas / Cook / Gang | Porsche Carrera RSR | Michael Callas | 2:58.8200 | |
| 14th | 5 | Harmon / Woodner | Porsche Carrera RSR | Bob Harmon | 2:59.0780 | |
| 15th | 74 | Ridgely / Heimrath | Porsche Carrera RSR | Ludwig Heimrath | 2:59.6450 | |
| 16th | 33 | Quintanilla / Loring | Porsche Carrera RSR | Roberto Quintanilla | 3:00.2900 | |
| 17th | 2 | Muniz / *Gerber / *Muniz | BMW 3.0 CSL | Daniel Muniz | 3:02.0360 | |
| 18th | 91 | Bolanos / Jourdain / Bolanos | Porsche Carrera RSR | Bolanos Racing | 3:03.3810 | |
| 19th | 8 | Beasley / Jennings | Porsche Carrera RSR | Bob Beasley | 3:04.2700 | |
| 20th | 12 | Smith / Young / Aiken | Chevrolet Corvette | Ford Smith | 3:04.3060 | |
| 21st | 48 | Carusso / Vreeland / Sereix | Chevrolet Corvette | John Carusso | 3:05.8410 | |
| 22nd | 73 | Christiansen / Myers | Chevrolet Camaro | Robert Christiansen | 3:07.4880 | |
| 23rd | 32 | Orr / Jobe | Chevrolet Corvette C3 | E. F. Miller & Co. | 3:07.7520 | |
| 24th | 17 | Gimondo / Tremblay | Chevrolet Camaro | Vince Gimondo | 3:08.4090 | |
| 25th | 4 | Dickinson / Webbe / Theodoracopulos | Porsche 911 Carrera RSR 3.0 | George Dickinson | 3:08.4460 | |
| 26th | 87 | Jones / Mignot | Ferrari 365 GTB/4 | Jones Motorsports | 3:09.3190 | |
| 27th | 71 | Johnson / Shaw | AMC Gremlin | Levi's Team Highball | 3:09.3870 | |
| 28th | 22 | Kreider / DeMarco | Chevrolet Corvette | Dale Kreider | 3:10.6930 | |
| 29th | 54 | Tunstall / Jenkins | Porsche Carrera RSR | Southpoint Porsche | 3:10.7810 | |
| 30th | 51 | Hotchkis / Kirby / Jones | Porsche 914/6 | Johnson-Bozzoni Porsche-Audi | 3:12.3420 | |
| 31st | 92 | Tillson / Oest | Porsche Carrera RSR | Oest-Tillson Racing | 3:12.5610 | |
| 32nd | 67 | McClain / White | Porsche 911 S | David McClain | 3:12.8020 | |
| 33rd | 69 | Montalvo / *Grob | Ford Escort | Juan Montalvo | 3:13.2290 | |
| 34th | 77 | Noseda / Mummery / *Small | Chevrolet Camaro | Ralph Noseda | 3:13.2460 | |
| 35th | 95 | Tabe / Marron / Martinez | Porsche Carrera RSR | Sergio Tabe | 3:13.3100 | |
| 36th | 68 | Febles / Cruz | Porsche Carrera RSR | Diego Febles Racing | 3:13.8410 | |
| 37th | 34 | Drolsom / Nagel | Porsche 911 S | George Drolsom | 3:14.1870 | |
| 38th | 62 | Chapman / Hood / Dumont | Chevrolet Corvette | Scott Chapman | 3:15.4360 | |
| 39th | 46 | Buzbee / Ross / Frates | Datsun 240Z | Buzbee Tropical Fish | 3:15.4560 | |
| 40th | 84 | Speakman / Maffucci | Datsun 240Z | Bob Speakman | 3:16.0440 | |
| 41st | 76 | Greenwood / Voeltz / English | Chevrolet Corvette | Kidd-America Racing | 3:16.1790 | |
| 42nd | 44 | Garcia / Naon / Freyre | Porsche 911 S | Montura Ranch Estates | 3:16.9940 | |
| 43rd | 60 | Bond / Rollin / Belperche | Porsche 911 | Rusty Bond | 3:17.8090 | |
| 44th | 10 | Gebhardt / Beilcke / Grinbold | BMW 2002 | Alf Gebhardt | 3:18.9540 | |
| 45th | 56 | Gano / Williamson / Parson | Chevrolet Camaro | Charles Gano | 3:19.2550 | |
| 46th | 18 | Wolters / Swanson | Chevrolet Camaro | Terry Wolters | 3:20.1330 | |
| 47th | 40 | Hastings / Bunch | Jaguar XKE | John Hastings | 3:20.8490 | |
| 48th | 28 | Fernandez / Gonzalez / Chevres | Lotus Elan | Bonky Fernandez | 3:21.0630 | |
| 49th | 55 | Simon / Stumpff / Molina | Ford Mustang | Henry Simon | 3:22.0810 | |
| 50th | 90 | Walle / Reddy | Mazda RX-3 | Ray Walle Mazda | 3:22.2590 | |
| 52nd | 9 | Ansley / *Connelly / *Woodall | Chevrolet Corvette | Tony Ansley | 3:22.9540 | |
| 55th | 72 | Arnold / Doran | Chevrolet Corvette | Bill Arnold | 3:24.3150 | |
| 60th | 47 | Groleau / Brent / Sweeney | Datsun 240Z | Jacques Groleau | 3:25.1570 | |
| 51st | 86 | Stefl / Fordyce | Chevrolet Corvette | Dennis Stefl | 3:25.2280 | |
| 61st | 82 | Scott / MacDonald / Neuhoff | AMC Gremlin | Bill Scott Racing | 3:25.2660 | |
| 57th | 85 | Hulen / Coupland / Causey | Porsche 914/6 | John E. Hulen | 3:25.9040 | |
| 72nd | 49 | Potter / Gray / Keller | Ford Mustang | Neil Potter | 3:27.1690 | |
| 68th | 50 | Vazquez / Quintana / Yenko | Porsche 911 S | Pedro Vasquez, Jr. | 3:27.7030 | |
| 58th | 63 | Punch / Waugh / Mendenhall | Porsche 911 | Doell Enterprises | 3:30.2820 | |
| 59th | 31 | Garcia, Jr. / Arzeno / Gonzalez | BMW 2002 | Luiz Garcia, Jr. | 3:31.4070 | |
| 64th | 29 | Mabrito / Steel | Datsun 240Z | Bruce Mabrito | 3:31.9320 | |
| 39 | Donley / Scott / Smith | MGB | Dean Donley | 3:32.5380 | |
| 62nd | 53 | Mollin / Riley | Volvo 142 | Arthur Mollin | 3:35.9530 | |
| 66th | 66 | Craw / Norburn | BMW 2002 | Miller & Norburn | 3:36.5660 | |
| 37 | Fraser / Archer | Datsun 510 | Tom Fraser | 3:45.4240 | |
| 67th | 58 | Oyler / Church / *Aden | Renault R12 | Professional Paint & Body | 3:46.6410 | |
| 71st | 914 | Schmid / Bundy | Porsche 914 | Holbert's Porsche-Audi | 3:47.7440 | |
| 52 | Kleinschmidt / Andrus / Culpepper | MGB | Charles Kleinschmidt | 3:47.8270 | |
| 54th | 41 | Jones, Jr. / Currin / Faul | Chevrolet Camaro | Herb Jones, Jr. | 3:50.9500 | |
| 78 | Ross / Beres | Ford Mustang | Tom Ross | 4:01.8140 | |
| 83 | McAlpine / Miller / Hardling | Austin Mini-Cooper | PPC Racing | 4:17.5420 | |
| 53rd | 27 | Davis / Almeida / DeGirolamo | Chevrolet Corvette | Robert E. Davis | 4:17.7300 | |
| 81 | Craven / Horniman | Ford Pinto | Dean Craven | 4:21.9000 | |
| 7th | 03 | Dann / Bond | Opel GT | Ozone Industries | 4:28.0480 | |
| 56th | 57 | Hinze / Grossman | De Tomaso Pantera | Marty Hinze | no time | |
| 63rd | 45 | Ramirez / Mutiz / DeNarvaez | Porsche 911 S | Delta Racing | no time | |
| 65th | 38 | Boza / Diaz / Garrido | Chevrolet Camaro | Roberto Boza | no time | |
| 69th | 61 | Parker / LaMay / Morgan | Ford Pinto | Larry Parker | no time | |
| 70th | 111 | Minter / Wietzes | Ferrari 365 GT4/BB | North American Racing Team | no time | |