| 1st | 6 | Fitzpatrick / Barbour | Porsche 935 K3 | Dick Barbour Racing | 2:34.0530 | 195.5627 |
| 2nd | 86 | Gregg / Haywood / Leven | Porsche 935/77A | Bayside Disposal Racing | 2:34.7920 | |
| 3rd | 93 | Whittington / Whittington / Whittington | Porsche 935 K3 | Whittington Bros. | 2:36.8430 | |
| 11th | 09 | Paul / Henn / Holbert | Porsche 935 K3 | Thunderbird Swap Shop | 2:39.6390 | |
| 4th | 30 | Moretti / Pianta / Zorzi | Porsche 935J | Electrodyne | 2:39.7590 | |
| 12th | 5 | Mendez / Redman / Miller | Porsche 935 K3 | Mendez/Woods/Akin | 2:39.9490 | |
| 5th | 05 | Akin / Woods / McKitterick | Porsche 935 K3 | Mendez/Woods/Akin | 2:41.5330 | |
| 6th | 9 | Garretson / Rahal / Nierop | Porsche 935 K3 | Dick Barbour Racing | 2:42.1690 | |
| 7th | 0 | Field / Ongais | Porsche 935 K3/80 | Interscope Racing | 2:42.5630 | |
| 8th | 3 | Busby / Jenner / Knoop | March-BMW M1 | Jim Busby Industries | 2:43.5710 | |
| 9th | 07 | Heimrath / Rutherford / Moran | Porsche 935 | Ludwig Heimrath | 2:45.2810 | |
| 10th | 80 | Carter / Carter / Edwards | Chevrolet Camaro | All Canadian/Peerless | 2:46.0920 | |
| 13th | 13 | Townsend / Morton / *Meister | Porsche 935 | Andial Racing | 2:47.0910 | |
| 14th | 25 | Cowart / Miller / Bell | BMW M1 | Red Lobster Racing | 2:47.9050 | |
| 15th | 55 | Kent-Cooke / St. James | Porsche 935 | Condor Racing | 2:50.5250 | |
| 16th | 4 | Marcus / Harmon / Hinze | Porsche 935 | Dick Barbour Racing | 2:50.5740 | |
| 17th | 50 | Shulnburg / Keyser / Morgan | Chevrolet Corvette | Shulnburg Scrap Metal | 2:50.8540 | |
| 18th | 37 | Espinosa / Cortes | Porsche Carrera RSR | Botero Racing | 2:52.8030 | 174.3418 |
| 19th | 58 | Gonzalez / Febles / Soldevilla | Porsche 934 | Coco Lopez/Pina Colada | 2:53.3280 | |
| 20th | 10 | Heinz / Nagel | Chevrolet Camaro II | Oftedahl Trucking | 2:53.4860 | |
| 21st | 44 | Tullius / Adam | Triumph TR8 | Group 44 | 2:55.8900 | |
| 53 | Leven / Haywood | Porsche 935 | Bruce Leven | 2:55.9770 | |
| 22nd | 38 | Fernandez / Ferrer / Lange | Porsche Carrera RSR | Boricua Racing | 2:56.3340 | |
| 23rd | 02 | Almeida / Rodriguez / Riano | Chevrolet Corvette | T & R Racing | 2:56.4110 | |
| 24th | 68 | Mendez / Rodriguez / Soto | Porsche 911 Carrera RSR | Porsche Montecarlo | 2:56.6300 | |
| 25th | 21 | Young / Lazier | Chevrolet Camaro | Oftedahl Trucking | 2:57.0270 | |
| 26th | 54 | Garcia / Naon / Herman | Porsche Carrera RSR | Montura Racing | 2:57.0800 | |
| 27th | 62 | Tachi / *Koll / *Sharp | Dome Toyota Celica Turbo | Tom's/Dome/Kegel Enterprises | 2:57.0940 | |
| 28th | 82 | Casey / Dietrich / Mueller | Mazda RX-7 | Trinity Racing | 2:57.8440 | 169.4012 |
| 29th | 03 | Frank / Brolin | Porsche 934 | Toyota Village | 2:58.2740 | |
| 30th | 60 | Ferran / Bond / Refenning | Porsche Carrera RSR | Bill Ferran | 2:58.6230 | |
| 31st | 89 | Soto / Rodriguez / *Delfino | Porsche Carrera RSR | Hector Huerta Racing | 2:59.0930 | |
| 32nd | 28 | Overby / *Hamilton / *Forrest | Porsche 911 | Hamilton House Racing | 2:59.7880 | |
| 33rd | 98 | Van Every / Tisdelle | Porsche Carrera RSR | Van Every Racing | 3:00.3410 | |
| 34th | 96 | Posey / Alderman / Stiff | Datsun 240Z | NTS Racing | 3:01.0440 | |
| 35th | 92 | Schramm / Bartling | Porsche Carrera RSR | Framm Promotions | 3:01.0480 | |
| 36th | 61 | Muzzin / *Opie / *Evans | Chevrolet Corvette | Tim Morgan | 3:01.1230 | |
| 37th | 73 | Honegger / Hutchins / Bohren | Mazda RX-7 | Z & W Enterprises | 3:01.2290 | |
| 38th | 79 | Bergstrom / Bedard | Mazda RX-7 | Sports Ltd. Racing | 3:01.4720 | |
| 39th | 40 | Cotrone / Donaldson / Currin | Chevrolet Corvette | Joe Cotrone | 3:01.5970 | |
| 40th | 77 | Mandeville / Downing / Frisselle | Mazda RX-7 | Mandeville Racing | 3:02.0870 | |
| 41st | 06 | Mullen / Fassler / Siebert | Porsche Carrera RSR | Fassler-Mullen Racing | 3:02.1810 | |
| 42nd | 32 | "Jamsal" / Pineda / *Barrientos | Porsche Carrera RSR | Scorpio Racing | 3:02.3590 | |
| 43rd | 46 | DeNarvaez / Londono | Porsche 911 Carrera RSR | de Narvaez Enterprises | 3:02.6320 | |
| 44th | 48 | John Carusso | Chevrolet Corvette | Dynasales | 3:02.7320 | |
| 45th | 65 | Noseda / *Loving / *Small | Chevrolet Camaro | Jeffrey Loving | 3:03.5740 | |
| 46th | 83 | Deacon / Moennick | Porsche Carrera | David Deacon | 3:03.9820 | |
| 47th | 99 | Boy / Hunt | Chevrolet Corvette | National Jets | 3:05.5500 | |
| 48th | 88 | Adams / Thompson | Pontiac Fire-Am | Herb Adams V.S.E. | 3:05.5560 | |
| 49th | 56 | Borlase / Kravig / Hammond | Porsche 911 | Rick Borlase | 3:06.3770 | |
| 50th | 81 | Welch / Winters / Cook | Mazda RX-7 | Trinity Racing | 3:06.4280 | |
| 51st | 70 | Doyle / Guest / Meyer | Mazda RX-7 | Chris Doyle | 3:06.8610 | |
| 52nd | 7 | Statzer / Johnson / Shaw | AMC Spirit AMX | Caribbean AMC/Jeep | 3:07.4450 | |
| 53rd | 15 | Gebhardt / Beilcke | BMW CSL | Bavarian Motors International | 3:08.5660 | |
| 54th | 84 | Boand / Kivela / Irwin | Chevrolet Corvette | Bard Boand Racing | 3:09.3210 | |
| 55th | 36 | Panaccione / *Case / *Rynerson | Porsche 911 | Case Racing | 3:09.4220 | |
| 56th | 8 | Arutunoff / *Marina | Lancia Stratos | A. I. Honda | 3:09.7010 | |
| 57th | 41 | Jones, Jr. / Faul / Combs | Buick Skylark | Jones Industries Racing | 3:09.7580 | |
| 58th | 85 | Hulen / Coupland | Porsche 914/6 | John E. Hulen | 3:10.3260 | |
| 59th | 95 | Ramirez / Villa / Gordillo | Porsche 911 | Mike Ramirez | 3:11.0660 | |
| 60th | 31 | Lopez / Arzeno / *Lamas | Porsche 911 | Lopez Bros. | no time | |
| 61st | 49 | Henderson / Copeman / Humphreys | Porsche Carrera | Tortilla Flats Racing | no time | |
| 62nd | 51 | Kirby / Baker / Sherwin | Porsche Carrera RSR | Kirby-Hitchcock Racing | no time | |
| 63rd | 78 | Nesbitt / Johnson | Mazda RX-2 | Revolution Wheels | no time | |
| 64th | 57 | Baker / Scott / Gilliland | Porsche 914/4 | Personalized Porsche | no time | |
| 65th | 14 | Garcia / Shinn / Vilarchao | Chevrolet Corvette | George Garcia | no time | |
| 66th | 66 | Shafer / Shafer / Crookston | Datsun 240Z | George R. Shafer | no time | |
| 67th | 17 | Chitwood / *Fillingham / *Gimondo | Chevrolet Nova | Tim Chitwood | no time | |
| 68th | 08 | Ratcliff / Speer / Wolters | Porsche 911 | Moran Construction | no time | |
| 69th | 12 | Smith / Jernigan / *Tumbleston | Chevrolet Camaro | Performance Marine | no time | |
| 70th | 23 | Zulkowski / Brisken / Nylander | Porsche 914/6 | Metalcraft Racing | no time | |
| 71st | 22 | Hirsch / Brezinka / Aschenbrenner | Porsche 914/6 | R & H Racing | no time | |
| 72nd | 90 | Lee / Kump / Leo | AMC AMX | Bob's Speed Products | no time | |
| 73rd | 74 | Ramirez / *Messina / *Vincentz | Mazda RX-7 | Z & W Enterprises | no time | |
| 74th | 87 | Bitterauf / Moxley / Smith | Porsche 911 | Der Klaus Haus | no time | |
| 75th | 71 | Jennings / Bean / Ashby | Porsche 911 | Bruce Jennings | no time | |
| 76th | 34 | Drolsom / Johnson / Hoskins | Porsche 911 | Drolsom Racing | no time | |
| 77th | 27 | LaGrow / Boyer / Turner | Chevrolet Camaro | Holley & LaGrow | no time | |
| 78th | 24 | DiLella / Cueto | Porsche 914/6 | DiLella Racing | no time | |
| 79th | 35 | Taylor / Taylor / Cavenaugh | Alfa Romeo Alfetta | Janis Taylor | no time | |