| 1st | 59 | Peter Gregg / Brian Redman / John Fitzpatrick | BMW 3.5 CSL | BMW of North America | 1:56.5500 |
| 2nd | 24 | David Hobbs / Benny Parsons | BMW 3.5 CSL | BMW of North America | 1:57.4270 |
| 3rd | 25 | John Fitzpatrick / Tom Walkinshaw | BMW 3.5 CSL | BMW of North America | 1:58.4360 |
| 4th | 15 | Javier Garcia / George Garcia / Manuel Garcia | Chevrolet Corvette | Garcia Brothers | 1:59.3890 |
| 5th | 14 | Al Holbert / Claude Ballot-Léna | Porsche Carrera RSR | George Dickinson/Holbert Porsche-Audi | 1:59.6070 |
| 6th | 66 | Tom Nehl / Stephen Behr | Chevrolet Monza | Tom Nehl | 2:00.3340 |
| 7th | 30 | George Dyer | Porsche 911 Carrera RSR 3.0 | Heufeld Porsche | 2:00.6560 |
| 8th | 76 | Mike Brockman / John Greenwood | Chevrolet Corvette | Greenwood Customercar Levitt Racing | 2:00.7660 |
| 9th | 86 | Hugh Kleinpeter / Ron Goldleaf | De Tomaso Pantera | Hugh Kleinpeter | 2:01.5300 |
| 10th | 35 | Ted Mathey / Joe Chamberlain / Arnstein Loyning | Chevrolet Corvette | Ted Mathey | 2:01.8730 |
| 11th | 11 | Egon Evertz / Sepp Greger / Jürgen Lässig | Porsche 934 | Sepp Greger | 1:59.2050 |
| 12th | 88 | Maurice Carter | Chevrolet Camaro | Maurice Carter | 2:01.0920 |
| 13th | 2 | Bobby Allison / Donnie Allison | Chevrolet Nova | Bobby Allison | 2:02.2410 |
| 14th | 41 | Herb Jones, Jr. / Steve Faul | Chevrolet Camaro | Jones Industries Racing | 2:02.5140 |
| 15th | 56 | Bob Hagestad / Jerry Jolly | Porsche 911 Carrera RSR | Bob Hagestad | 2:02.6530 |
| 16th | 43 | John Graves / John O'Steen / Dave Helmick | Porsche Carrera RSR | Ecurie Escargot | 2:02.7860 |
| 17th | 21 | David Pearson / Larry Pearson / Gary Bowsher / Jim Bowsher | Ford Torino | Jack Bowsher | 2:02.8040 |
| 18th | 68 | Mike Meldeau / Bill McDill / John Tremblay | Chevrolet Camaro | Mike Meldeau | 2:03.1620 |
| 19th | 50 | Fred van Beuren, Jr. / Guillermo Rojas / Andres Contreras | Porsche Carrera | Hector Rebaque, Sr. | 2:03.1850 |
| 20th | 74 | Ludwig Heimrath / Jacques Bienvenue / Norm Ridgely | Porsche Carrera RSR | Ludwig Heimrath | 2:03.8010 |
| 21st | 55 | Joe Ruttman / Buddy Baker / Stephen Behr | Dodge Dart | Car & Driver | 2:04.9000 |
| 22nd | 22 | Denny Long / Bill Jobe / Tim Startup | Chevrolet Corvette | Bandag | 2:04.9030 |
| 23rd | 44 | Mauricio DeNarvaez / Albert Naon | Porsche 911 Carrera RSR | Mauricio DeNarvaez | 2:05.5630 |
| 24th | 99 | Phil Currin / Cliff Gottlob / Peter Knab | Chevrolet Corvette C3 | Phil Currin | 2:05.5760 |
| 25th | 75 | Bob Christiansen / Billy Hagan | Chevrolet Camaro | Robert Christiansen | 2:05.8790 |
| 26th | 04 | Hershel McGriff / Doug McGriff | Chevrolet Nova | Hershel McGriff | 2:06.0870 |
| 27th | 97 | Juan Carlos Bolanos / Billy Sprowls / Gustavo Bolanos | Porsche Carrera RSR | Juan Carlos Bolanos | 2:06.8780 |
| 28th | 61 | Jim Busby / Hurley Haywood | Porsche Carrera RSR | Brumos Porsche | 2:06.9230 |
| 29th | 33 | Glenn Francis / Randy Bebout | Chevrolet Chevelle | Glenn Francis | 2:07.8640 |
| 30th | 48 | James Hylton / Richard Childress | Chevrolet Laguna | James Hylton | 2:08.1570 |
| 31st | 47 | Bill Bean | Porsche 911 S | Williams Grainger | 2:08.4370 |
| 32nd | 91 | Harold Miller / John Ray | Chevrolet Chevelle | Debra Lynn Miller | 2:09.3560 |
| 33rd | 40 | Sam Fillingham / Bud Sherk | Chevrolet Corvette | Sam Fillingham | 2:09.6720 |
| 34th | 71 | Chris Cord / Jim Adams / Milt Minter | Ferrari 365 GTB/4 | Ken Starbird | 2:10.1860 |
| 35th | 12 | Dieter Schmid / Wilhelm Bartels / Heinz Martin / Egon Evertz | Porsche Carrera RSR | Sepp Greger | 2:10.5640 |
| 36th | 20 | Richard Weiss / Michael Oleyar / Jerry Karl | Porsche 911 S | Richard Weiss | 2:10.6970 |
| 37th | 29 | Charles Mendez / Dave Cowart / Dave Panaccione | Porsche 911 T | Charles Mendez | 2:10.9580 |
| 38th | 42 | Bob Hindson / Dick Davenport / Frank Carney | Porsche 911 S | BHR Porsche | 2:11.1220 |
| 39th | 64 | C. C. Canada | Chevrolet Camaro | C. C. Canada | 2:11.2450 |
| 40th | 92 | Mike Tillson / Dieter Oest / Bruce Jennings | Porsche Carrera RSR | Oest/Tillson | 2:11.2610 |
| 41st | 72 | Bill Arnold / Al Levenson | Chevrolet Corvette C2 | Bill Arnold | 2:11.3310 |
| 42nd | 51 | John Hotchkis / Robert Kirby / Len Jones | Porsche 914/6 | Max Dial | 2:11.5620 |
| 43rd | 73 | Clark Howey | Chevrolet Corvette | Howey Farms | 2:12.3230 |
| 44th | 98 | Ed Negre / Bob Mitchell / Arturo Merzario | Dodge Charger | Ed Negre | 2:13.1850 |
| 45th | 34 | George Drolsom / Bob Nagel | Porsche 911 S | George Drolsom | 2:13.2100 |
| 46th | 67 | Dave White / Frank Harmstad | Porsche 914/6 | David McClain | 2:13.9990 |
| 47th | 46 | Jose A. Daher / Alfonso Leal / Jose Madero | Ford Mustang | Jose Antonio Daher | 2:15.1240 |
| 48th | 81 | Hans Berner / Willy Goebbels / Fritz Hochreuter | Porsche 911 S | Motex Auto | 2:15.1410 |
| 49th | 85 | John Hulen / Ron Coupland / Nick Engels | Porsche 914/6 | John E. Hulen | 2:15.6930 |
| 50th | 0 | William Frates / Craig Ross / Spencer Buzbee | Datsun 240Z | William Frates | 2:16.6320 |
| 51st | 49 | Neil Potter / Bob Gray / Luis Sereix | Ford Mustang | Neil Potter | 2:16.9190 |
| 52nd | 80 | Carm Solomone / Ed Maksym / James Halverson | Chevrolet Camaro | Carmon Solomone | 2:16.9550 |
| 53rd | 89 | Don Parish / Dave Causey / Wayne Nelson | Porsche 911 S | Barrick Motor Racing | 2:17.4350 |
| 54th | 36 | Rainer Brezinka / Gary Hirsch / Brian Hardacre | Porsche 911 S | Rainer Brezinka | 2:19.0440 |
| 55th | 65 | Paul May / Lee Mueller / David Sauers | Porsche 911 S | Stephen Isett | 2:20.6180 |
| 56th | 18 | Terry Wolters / Charles Gano / Joe Castellano | Chevrolet Camaro | Terry Wolters | 2:20.6250 |
| 57th | 7 | Makoto Kamazuka / Masashi Fukuda / Ron Cortez | Mazda RX-3 | Glen Marckwardt | 2:23.4810 |
| 58th | 9 | Bruce Mabrito / Jack Steel | Datsun 240Z | Bruce Mabrito | 2:26.0500 |
| 59th | 84 | Ara Dube / Harro Zitza / Doug Zitza | Porsche 911 S | Mike Meldeau | 2:27.3440 |
| 60th | 6 | Nick Craw | BMW 2002 TI | Miller/Norburn | 2:27.8780 |
| 61st | 53 | Arthur Mollin / Bob Speakman | Volvo 142 S | Arthur Mollin | 2:31.6260 |
| 62nd | 52 | Bob Bergstrom / Bill Shaw / Martin Palmer | Honda Civic | CACI | 2:39.8770 |
| 63rd | 10 | Alf Zellmer / Brian Goellnicht / Bill Alsup | BMW 2002 TI | Louis McAlpine | 2:41.2820 |
| 64th | 1 | Jim Westphal / Anatoly Arutunoff / Brian Goellnicht | BMW 2002 TI | Louis McAlpine | 2:45.4280 |
| 65th | 90 | Ray Walle / Tom Reddy / Bill Scott | Mazda Cosmo | Ray Walle | 2:45.7960 |
| 66th | 54 | Alex Job / Steve Southard / Hal Sahlman | Porsche 914/6 | Spirit Racing | 2:52.2940 |
| 67th | 4 | Stephen Bond / Dale Kreider | Pontiac Astre | Bill Nelson, Sr. | 3:00.5210 |
| 68th | 60 | Rusty Bond / Ren Tilton / John Belperche | Porsche 911 S | Rusty Bond | no time |
| 69th | 19 | Henley Gray / Bob Burcham | Chevrolet Laguna | Henley Gray | no time |
| 70th | 08 | Mike Williamson / Keith Swope | AMC Gremlin | Peak Oil | no time |
| 71st | 28 | Brian Goellnicht / Anatoly Arutunoff | Lotus Europa | Anatoly Arutunoff | no time |
| 72nd | 93 | Larry Flynn / Bobbie Johnson | Chevrolet Camaro | Jim E. Logan | no time |
| 73rd | 23 | Charlie Kemp | Ford Mustang II | Charlie Kemp | no time |