| Fin | St | Driver | # | Owner | Car | Laps | Money | Status | Laps Led |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 9 | Roy Woods Rob McFarlin Bob Akin | 9 | Dick Barbour Racing | Porsche 935 930 770 0910 | 239 | 9,300 | running | |
| 2 | 4 | Paul Miller Brian Redman Charles Mendez | 5 | Busch Beer Racing | Porsche 935 930 770 0957 | 238 | running | ||
| 3 | 7 | Bob Bondurant Gary Belcher Bob Garretson | 3 | Dick Barbour Racing | Porsche 935 930 770 0959 | 235 | running | ||
| 4 | 1 | Rick Mears Dick Barbour Rolf Stommelen | 6 | Dick Barbour Racing | Porsche 935/77A 930 890 0024 | 234 | running | ||
| 5 | 16 | Tato Ferrer Bonky Fernandez Chiqui Soldevilla | 38 | Boricua Racing | Porsche Carrera RSR | 233 | running | ||
| 5 | 16 | Tato Ferrer Bonky Fernandez Chiqui Soldevilla | 38 | Boricua Racing | Porsche Carrera RSR 911 460 9113 | 233 | running | ||
| 6 | 14 | Hal Shaw Jr. Norm Ridgely | 13 | Hal Shaw Racing | Porsche 935 930 670 0180 | 231 | running | ||
| 7 | 29 | Horst Kroll Rudy Bartling | 69 | Bytzek Automotive | Porsche Carrera RSR | 230 | running | ||
| 8 | 21 | Tony Garcia Juan Montalvo Alberto Vadia | 54 | Montura Ranch Estates | Porsche Carrera RSR | 229 | running | ||
| 9 | 28 | Lance Van Every Ash Tisdelle | 98 | Van Every Racing | Porsche Carrera RSR | 226 | running | ||
| 10 | 24 | Honorato Espinosa Francisco Lopez Jorge Cortes | 37 | Botero Racing Team | Porsche Carrera | 219 | running | ||
| 11 | 44 | Rusty Bond Ren Tilton | 60 | E. J. Pruitt & Sons | Porsche 911 | 219 | running | ||
| 12 | 34 | Jim Trueman John Higgins Chip Mead | 39 | Barrick Motor Racing | Porsche 911 | 215 | running | ||
| 13 | 41 | Roger Mandeville Amos Johnson Jim Downing | 77 | Roger T. Mandeville | Mazda RX-7 | 213 | running | ||
| 14 | 22 | Dave Cowart Kenper Miller Dave McClain | 07 | Morrison's | Porsche Carrera | 205 | running | ||
| 15 | 15 | Francisco Romero Ernesto Soto | 89 | Hector Huerta | Porsche Carrera | 201 | running | ||
| 16 | 49 | Peter Welter Richard Aten Jack Refenning | 33 | Peter Welter | Porsche 911 | 198 | running | ||
| 17 | 35 | Bonnie Henn Lyn St. James Janet Guthrie | 2 | Thunderbird Swap-Shop | Ferrari 365 GTB/4 13367 | 194 | running | ||
| 18 | 38 | Walt Bohren James Besmer | 70 | Walt Bohren Racing | Mazda RX-7 | 193 | running | ||
| 19 | 19 | Roger Schramm Werner Frank | 91 | Framm Promotions | Porsche Carrera RSR | 192 | running | ||
| 20 | 61 | Robert Kirby Wayne Baker Tom Winters | 51 | Personalized Porsche | Porsche 914/4 | 188 | running | ||
| 21 | 58 | Terry Wolters Bob Buchler Nort Northam | 08 | Moran Construction | Porsche 911 911 030 1263 | 182 | running | ||
| 22 | 20 | Bill Koll Jim Cook Dennis Aase | 62 | Koll Motor Sports | Porsche 914/6 | 182 | running | ||
| 23 | 60 | David Deacon Reagan Riley Hank Franczak | 93 | M. Rochas Porsche | Porsche 914/6 | 179 | running | ||
| 24 | 3 | John Paul Al Holbert | 18 | John Paul | Porsche 935 930 890 0037 | 176 | transmission | ||
| 25 | 63 | Jack Swanson Dick Gauthier | 52 | Ours & Hours Racing | Chevrolet Camaro | 158 | running | ||
| 26 | 2 | Hurley Haywood Preston Henn Peter Gregg | 09 | Thunderbird Swap-Shop | Porsche 935/77A 930 890 0021 | 157 | engine | ||
| 27 | 42 | Jeff Loving Richard Small Ralph Noseda | 66 | Sunset Racing | Chevrolet Camaro | 148 | did not finish | ||
| 28 | 12 | Maurico DeNarvaez Albert Naon | 46 | Mauricio deNarvaez | Porsche Carrera RSR 911 360 1099 | 147 | did not finish | ||
| 29 | 31 | Dave White Robert Overby | 01 | Roehrig Racing | Porsche 911 | 147 | running | ||
| 30 | 76 | Ford Smith Jimmy Tumbleston Neil Potter | 12 | Ford Smith Racing | Chevrolet Camaro | 139 | engine | ||
| 31 | 55 | Bruce Jennings Bob Beasley | 71 | Bruce Jennings | Porsche 911 | 136 | did not finish | ||
| 32 | 52 | George Van Arsdale Kent Murry | 44 | SUD Porsche Racing | Porsche 911 | 131 | running | ||
| 33 | 70 | J. Dana Roehrig J. Kurt Roehrig | 02 | Roehrig Racing | Porsche 911 | 128 | running | ||
| 34 | 51 | Guy Thomas Milton Moise Tom Nehl | 53 | Guy F. Thomas | Chevrolet Camaro | 122 | running | ||
| 35 | 5 | Ted Field Danny Ongais | 00 | Ted Field | Porsche 935/77A 930 890 0019 | 120 | suspension | ||
| 36 | 25 | Bill McDill Tom Frank | 43 | Meldeau Tire Stores | Chevrolet Camaro | 118 | running | ||
| 37 | 59 | Steve Faul Herb Jones Jr. Fred Lang | 81 | Jones Ind. Racing | Chevrolet Corvette | 116 | did not finish | ||
| 38 | 71 | Billy Hagan Hoyt Overbagh Ron Reed | 29 | Stratagraph | Rickets Monza 001/Chevrolet | 115 | did not finish | ||
| 39 | 48 | Rainer Brezinka Gary Hirsch Fritz Hochreuter | 50 | R & H Racing | Porsche 911 | 109 | did not finish | ||
| 40 | 72 | Mike Ramirez Manuel Villa Luis Gordillo | 75 | Mike Ramirez | Porsche 911 | 108 | engine | ||
| 41 | 46 | Ron Case Dave Panaccione | 36 | Case Racing | Porsche 911 | 106 | did not finish | ||
| 42 | 6 | Bill Whittington Don Whittington | 94 | Whittington Brothers | Porsche 935/79 930 990 0026 | 104 | accident | ||
| 43 | 37 | Bill Scott Pierre Honegger | 72 | Bill Scott Racing-Z&W | Porsche 911 | 99 | did not finish | ||
| 44 | 13 | Dale Whittington R.D. Whittington Milt Minter | 92 | Whittington Brothers | Porsche 934 930 670 0173 | 94 | suspension | ||
| 45 | 67 | Dave Yerger Dario Orlando Del Taylor | 88 | Day Enterprise Racing | Alfa Romeo GTV | 90 | did not finish | ||
| 46 | 39 | John Hulen Ron Coupland Bob Speakman | 85 | John E. Hulen | Porsche 914/6 | 82 | did not finish | ||
| 47 | 17 | Craig Carter Murray Edwards R.J. Valentine | 56 | Peerless Racing | Chevrolet Camaro | 81 | engine | ||
| 48 | 30 | Charlie Kemp Kees Nierop Carson Baird | 23 | Kemp Motoracing | Ford Cobra II | 80 | engine | ||
| 49 | 43 | Raymond Mummery Tom Sheehy Luis Sereix | 27 | Miami Auto Racing | Porsche 911S | 80 | did not finish | ||
| 50 | 10 | Ricardo Londoño Bridge George Garces John Gunn | 97 | Ricardo Londono | Porsche 935 | 77 | did not finish | ||
| 51 | 57 | Anatoly Arutunoff José Marina Danny Sullivan | 8 | Automobiles International | Lancia Stratos | 75 | engine | ||
| 52 | 65 | George Drolsom Mark Greb John Maffucci | 34 | Drolsom Racing | Porsche 911 | 75 | transmission | ||
| 53 | 53 | Tico Almeida Rene Rodriguez Pepe Romero | 03 | Motorcito Racing | Chevrolet Corvette | 73 | engine | ||
| 54 | 40 | Hiram Cruz Juan Lopez Mandy Gonzalez | 31 | Hiram Cruz | Porsche 911 | 66 | did not finish | ||
| 55 | 23 | Diego Febles Phil Currin | 58 | Diego Febles | Porsche Carrera | 65 | transmission | ||
| 56 | 36 | Bob Bergstrom Brad Frisselle | 79 | Sports Ltd. Racing | Mazda RX-7 | 64 | did not finish | ||
| 57 | 75 | Rick Thompkins Dave Heinz | 04 | Rick Thompkins | Chevrolet Corvette | 61 | engine | ||
| 58 | 74 | Stephen Bond Philip Dann | 95 | Ozone Industries | Chevrolet Monza | 49 | transmission | ||
| 59 | 64 | Peter Kirill Gerry Wellik Carl Shafer | 22 | Gordon Oftedahl | Chevrolet Camaro | 37 | did not finish | ||
| 60 | 47 | Bob Zulkowski Gerard Raney | 25 | Metal Craft Racing | Porsche 914/6 473 29 24107 | 34 | did not finish | ||
| 61 | 56 | Kenneth LaGrow William Boyer | 17 | Kenneth D. LaGrow | Chevrolet Camaro | 29 | out of fuel | ||
| 62 | 32 | Darrell Overstreet Dwight Mitchell | 16 | Overstreet Racing Ent. | Porsche 914/6 | 25 | engine | ||
| 63 | 11 | Clif Kearns Gianpiero Moretti | 28 | Desperado Racing | Porsche 935 930 770 0960 | 23 | out of fuel | ||
| 64 | 45 | Bill Bean Al Cosentino Tom Ashby | 61 | Bill Bean | Mazda RX-3 | 19 | did not finish | ||
| 65 | 8 | Ludwig Heimrath Enrique Molins Carlos Moran | 7 | Heimrath Racing | Porsche 935 930 770 0958 | 17 | did not finish | ||
| 66 | 62 | John Tremblay Bob Lapp | 57 | J. F. Tremblay | Datsun 240Z | 12 | did not finish | ||
| 67 | 54 | Steve Southard Earl Roe | 40 | Performance Specialists | Porsche 914/6 | 11 | did not finish | ||
| 68 | 66 | Manuel Quintana Joaquin Balaguer Jorge DeCardenas Pedro Vazquez | 67 | Quintana Racing | Porsche 911 | 9 | did not finish | ||
| 69 | 50 | Sam Fillingham Courtney Canfield Tim Chitwood | 48 | Fillingham Racing | Chevrolet Corvette | 8 | engine | ||
| 70 | 26 | Carl Shafer John Wood | 21 | Gordon Oftedahl | Chevrolet Camaro | 8 | engine | ||
| 71 | 27 | Alf Gebhardt Bruno Beilcke | 15 | Bavarian Motors | BMW CSL | 4 | did not finish | ||
| 72 | 73 | Mark Leuzinger Mike Van der Werff | 4 | B. R. Racing Team | De Tomaso Pantera 2846/Ford | 0 | electrical | ||
| 73 | 18 | Herb Jones Jr. Dean Hollis | 41 | Jones Ind. Racing | Chevrolet Camaro | 0 | did not start | 0 | |
| 74 | 33 | Tim Chitwood Joie Chitwood Jr. | 47 | Tim Chitwood | Chevrolet Nova | 0 | did not start | 0 | |
| 75 | 68 | Josele Garza Martínez Bill McVey Glen Cross | 14 | Precision School of Racing | Porsche Carrera | 0 | did not start | 0 | |
| 76 | 69 | Mike Williamson Wayne Miller Charles Gano | 87 | U-Mo Racing | Chevrolet Corvette | 0 | did not start | 0 |