| Fin | St | Driver | # | Owner | Car | Laps | Money | Status | Laps Led |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 4 | Rolf Stommelen Toine Hezemans Peter Gregg | 99 | Brumos Porsche | Porsche 935/77A 930 890 0011 | 680 | 17,700 | running | |
| 2 | 8 | Dick Barbour Manfred Schurti Johnny Rutherford | 6 | Dick Barbour Racing | Porsche 935/77A 930 890 0033 | 650 | 10,750 | running | |
| 3 | 21 | Diego Febles Alec Poole | 58 | Diego Febles | Porsche Carrera RSR | 645 | 10,300 | running | |
| 4 | 14 | Bonky Fernandez John Paul Phil Currin | 33 | Boricua Racing | Porsche Carrera RSR 911 460 9113 | 637 | running | ||
| 5 | 10 | Josef Brambring Dieter Schornstein Louis Krages | 14 | Erwin Kremer | Porsche 935 K2 007 00016 | 635 | running | ||
| 6 | 12 | Gary Belcher Doc Bundy Al Holbert | 09 | Belcher Racing | Porsche 934/5 | 632 | fuel pump | ||
| 7 | 18 | Steve Earle Bob Akin Rick Knoop | 32 | Earle & Akin Racing Associates | Porsche Carrera RSR 911 460 9048 | 632 | running | ||
| 8 | 16 | John Morton Tony Adamowicz Hal Sahlman Bobby Carradine | 65 | Dan Ward Racing | Ferrari 365 GTB/4 16407 | 622 | running | ||
| 9 | 6 | Peter Gregg Claude Ballot-Léna Brad Frisselle | 59 | JMS Brumos Porsche | Porsche 935 930 770 0909 | 621 | running | ||
| 10 | 9 | Hal Shaw Jr. Jim Busby Howard Meister | 13 | Hal Shaw Racing | Porsche 935 930 670 0180 | 608 | running | ||
| 11 | 26 | Dave White Gary Mesnick J. Dana Roehrig | 01 | J. Dana Roehrig | Porsche 911 | 604 | engine | ||
| 12 | 57 | George Drolsom Hugh Davenport Mark Greb | 34 | Drolsom Racing | Porsche 911S | 592 | running | ||
| 13 | 7 | Franz Konrad Reinhold Jöst Volkert Merl | 21 | Franz Konrad | Porsche 935 930 670 0172 | 590 | running | ||
| 14 | 55 | Terry Wolters Jack Refenning Raymond Mummery | 08 | Terry Wolters | Porsche 911 911 030 1263 | 584 | running | ||
| 15 | 19 | Tom Frank Bob Bergstrom | 24 | Executive Industries | Porsche Carrera RSR 911 460 9056 | 580 | running | ||
| 16 | 56 | Chris Doyle John Maffucci Bob Speakman | 84 | Bondurant Racing School | Datsun 260Z | 577 | running | ||
| 17 | 34 | John Thomas Ren Tilton Rusty Bond | 60 | R & R Racing | Porsche 911 | 551 | running | ||
| 18 | 35 | Richard Weiss Bill Alsup Bill Follmer | 29 | Richard C. Weiss | Porsche 911S | 550 | running | ||
| 19 | 45 | Bob Buchler Eddie Johnson Clay Young | 37 | Clay Young | Chevrolet Camaro | 550 | running | ||
| 20 | 36 | Maurico DeNarvaez Albert Naon Tony Garcia | 46 | Mauricio DeNarvaez | Porsche Carrera RSR 911 360 1099 | 547 | did not finish | ||
| 21 | 49 | Bill Harriss Volker Bruckmann Ron Southern | 22 | Music City Racing | Porsche 911E | 546 | running | ||
| 22 | 17 | François Migault Lucien Guitteny Gregg Young | 5 | Team Grand Competition on Canart | Ferrari 365 GT4/BB 18139 | 521 | running | ||
| 23 | 66 | Luis Mendez Mandy Gonzalez Tato Ferrer | 68 | Luis Mendez | Porsche Carrera RSR 005 0009 | 509 | running | ||
| 24 | 65 | Ron Southern Steve Cook Bob Bondurant Bill Cooper | 91 | Bob Bondurant | Datsun 260Z | 508 | running | ||
| 25 | 52 | Bobby Hillin William Henderson Richard Turner | 78 | Western Motor Works | Ferrari 365 GTB/4 13771 | 506 | running | ||
| 26 | 53 | Brian Goellnicht José Marina Jack May Anatoly Arutunoff | 9 | Anatoly Arutunoff | Lancia Stratos | 505 | running | ||
| 27 | 31 | Preston Henn Hal Sahlman Sandy Satullo | 94 | Preston Henn | Ferrari 365 GTB/4 13367 | 502 | accident | ||
| 28 | 46 | Ron Case Dave Panaccione | 36 | Case Racing | Porsche 911 | 500 | running | ||
| 29 | 42 | Jim Downing Stu Fisher Walt Bohren Roger Mandeville | 53 | Mazda Auto Tokyo | Mazda RX-3 | 498 | running | ||
| 30 | 44 | Taku Akaike Al Cosentino | 61 | Alfred Cosentino | Mazda RX-3 | 498 | running | ||
| 31 | 29 | Bill McDill Mike Meldeau | 38 | Mike Meldeau | Chevrolet Camaro | 497 | running | ||
| 32 | 62 | Guy Church Rick Kump Bob Lee | 10 | Bob's Speed Products | AMC AMX | 481 | running | ||
| 33 | 68 | Charles Kleinschmidt Lee Culpepper | 50 | Native Tan | MGB GT | 477 | running | ||
| 34 | 41 | Amos Johnson Dennis Shaw Charles Woodward | 77 | Amos Johnson/Dennis Shaw | AMC Hornet AMX | 475 | running | ||
| 35 | 11 | Ludwig Heimrath Jacques Bienvenue Norm Ridgely | 7 | Heimrath Racing | Porsche 935 930 770 0958 | 466 | accident | ||
| 36 | 61 | Dave Cowart Charles Mendez Joe Castellano | 07 | Morrison's Inc. | Porsche Carrera RSR | 459 | did not finish | ||
| 37 | 24 | Carmon Solomone Fred Lang Buzz Fyhrie | 82 | Solomone Racing | Chevrolet Camaro | 456 | did not finish | ||
| 38 | 48 | Bruno Beilcke Sepp Grinbold Alf Gebhardt | 15 | Bavarian Motors International | BMW 3.0 CSL | 427 | did not finish | ||
| 39 | 58 | Emiliano Rodriguez Hiram Cruz | 55 | Emiliano Rodriguez | Lotus Europa Ford | 402 | running | ||
| 40 | 60 | Hurley Haywood Bob Hagestad Doc Bundy | 95 | Bob Hagestad | Porsche 935 930 770 0957 | 400 | clutch | ||
| 41 | 50 | Dick Gauthier Jack Swanson Brad West | 18 | Ours & Hours Racing | Chevrolet Camaro | 395 | running | ||
| 42 | 23 | R.J. Valentine Craig Carter Murray Edwards | 56 | Carter Brothers | Chevrolet Camaro | 361 | running | ||
| 43 | 67 | Pedro Vazquez Ron Oyler Joseph Hamilton Gunter Hamilton Gunter Seipolt | 87 | Pedro Vazquez Jr. | Porsche 911 | 360 | running | ||
| 44 | 43 | Dick Neland Al Levenson Tom Brown | 02 | Al Levenson | Chevrolet Corvette | 353 | running | ||
| 45 | 28 | Yoshimi Katayama 片山 義美 Yojiro Terada 寺田 陽次郎 Roger Mandeville | 52 | Mazda Auto Tokyo | Mazda RX-3 | 271 | did not finish | ||
| 46 | 13 | Chris Cord Jim Adams | 19 | Chris Cord Racing | DeKon Monza 1011/Chevrolet | 261 | engine | ||
| 47 | 20 | Clark Howey Dale Koch David Crabtree | 73 | Howey Farms | Chevrolet Camaro | 259 | did not finish | ||
| 48 | 39 | Frank Thomas Lee Mueller Logan Blackburn | 76 | Quality Inn | Porsche 911 | 224 | did not finish | ||
| 49 | 22 | Carl Thompson Billy Hagan Rusty Schmidt | 72 | Bill Arnold | Chevrolet Corvette | 169 | did not finish | ||
| 50 | 15 | Richard Bostyan Jerry Thompson Don Yenko | 20 | Richard L. Bostyan | Chevrolet Corvette | 152 | did not finish | ||
| 51 | 64 | Kenper Miller Paul Miller Oscar Koveleski | 25 | Kenper Miller | BMW 3.0 CSL | 125 | engine | ||
| 52 | 51 | Stephen Bond Dale Kreider Philip Dann | 05 | Dale Kreider | Chevrolet Monza | 123 | wheel | ||
| 53 | 33 | Felice Besenzoni Luciano Dal Ben Byron Wever | 8 | Jolly Club | Ferrari 308 GTB 20457 | 117 | electrical | ||
| 54 | 27 | John Carusso Emory Donaldson Luis Sereix | 48 | Autodyne Inc. | Chevrolet Corvette | 90 | suspension | ||
| 55 | 30 | Herb Adams Patrick Bedard Marv Thomson | 80 | Herb Adams | Oldsmobile Cutlass | 89 | gearbox | ||
| 56 | 1 | Danny Ongais Ted Field Milt Minter | 0 | Ted Field | Porsche 935 | 88 | engine | ||
| 57 | 2 | Bob Wollek Henri Pescarolo Didier Jaunet | 12 | Erwin Kremer | Porsche 935/77A 930 890 0013 | 86 | engine | ||
| 58 | 63 | John Hotchkis Robert Kirby Dennis Aase | 51 | Wynn's International | Porsche 911 | 85 | engine | ||
| 59 | 32 | Dino Mallet Bob Bondurant Sergio Romolotti Romeo Camathias | 4 | Jolly Club | Ferrari 308 GTB | 82 | transmission | ||
| 60 | 69 | Guido Levetto Dan Rice | 03 | Guido Levetto | Chevrolet Camaro | 79 | suspension | ||
| 61 | 38 | John Tunstall Steve Behr Lou Timolat | 54 | T & C | Porsche Carrera 911 460 0100 | 70 | flywheel | ||
| 62 | 59 | Greg Pickett Neil Bonnett Bruce Canepa | 39 | Greg Pickett | Porsche Carrera | 67 | ignition | ||
| 63 | 54 | Pierre Honegger Bob Dean Mark Hutchins Bill Scott | 27 | Z & W Enterprises | Mazda RX-3 | 57 | did not finish | ||
| 64 | 3 | David Hobbs Ronnie Peterson | 2 | McLaren Racing | BMW 320i Turbo | 47 | engine | ||
| 65 | 40 | Sam Fillingham Tim Chitwood K.P. Jones | 17 | Tim Chitwood | Chevrolet Nova | 45 | accident | ||
| 66 | 5 | Carlo Facetti Martino Finotto | 3 | Jolly Club | Porsche 935 930 770 0902 | 6 | engine | ||
| 67 | 47 | John Hulen Ron Coupland Nick Engels | 85 | John Hulen | Porsche 914/6 | 0 | engine | ||
| 68 | 37 | Francisco Romero Ernesto Soto Hardie Beloff | 71 | Bill Scott | Porsche 911S | 615 | disqualified | ||
| 69 | 25 | Janet Guthrie Hugh Kleinpeter Jeff Stevens | 86 | Hugh Kleinpeter | De Tomaso Pantera 1603/Ford | 0 | did not start | 0 |