| 1st | 14 | Al Holbert / Elliot Forbes-Robinson | Porsche 911 Carrera RSR 3.0 | |
| 2nd | 59 | Peter Gregg / Hurley Haywood | Porsche Carrera RSR | |
| 3rd | 13 | Warren Agor / Stephen Behr | Chevrolet Monza | Warren Agor |
| 4th | 95 | Bob Hagestad / Skip Barber | Porsche 911 Carrera RSR | |
| 5th | 43 | John O'Steen / Dave Helmick | Porsche Carrera RSR | |
| 6th | 23 | Charlie Kemp / Carson Baird | Porsche 911 Carrera RSR | Armorall Racing Team |
| 7th | 61 | Jim Busby / Billy Sprowls / Robert Kirby | Porsche Carrera RSR | |
| 8th | 33 | Bob Sharp / Jim Fitzgerald | Datsun 240Z | Bob Sharp Racing |
| 9th | 88 | Maurice Carter / George Follmer | Chevrolet Monza | |
| 10th | 1 | Michael Keyser / George Dyer | Porsche 911 Carrera RSR 3.0 | George Dyer |
| 11th | 2 | Horst Kwech | Chevrolet Monza | |
| 12th | 87 | Tony DeLorenzo | Chevrolet Camaro | |
| 13th | 30 | Roberto Quintanilla / Roberto Gonzalez | Porsche Carrera RSR | |
| 14th | 75 | Norm Ridgely / Rudy Bartling | Porsche Carrera | |
| 15th | 47 | Brad Frisselle / John Morton | Datsun 240Z | Transcendental Racing |
| 16th | 42 | Jim Moyer / Richard Ortman | Chevrolet Corvette | |
| 17th | 93 | Robert Vincent / Bob McClure / Don Yenko | Chevrolet Camaro | |
| 18th | 99 | Phil Currin / Peter Knab | Chevrolet Corvette | |
| 19th | 34 | George Drolsom / Bob Nagel | Porsche 911 S | George Drolsom |
| 20th | 54 | Darrell Carter / Bob Baechle | Chevrolet Corvette | |
| 21st | 61 | Jerry Lancaster / Jim Sherman | Chevrolet Corvette | |
| 22nd | 86 | Bob Biernerth / Blake Rear | Chevrolet Corvette | |
| 23rd | 41 | Herb Jones, Jr. / Steve Faul | Chevrolet Camaro | |
| 24th | 26 | Jose A. Daher / Daniel Muniz | Ford Mustang | |
| 25th | 11 | John Winkler / John Kelly | Porsche Carrera | |
| 26th | 32 | Gene Felton | Chevrolet Monza | |
| 27th | 51 | John Hotchkis / Robert Kirby | Porsche 914/6 | |
| 28th | 46 | Craig Carter / David Laughlin | Chevrolet Camaro | |
| 29th | 77 | Bruce Jennings / Bob Beasley | Porsche 911 S | |
| 30th | 89 | Don Parish / Dave Causey | Porsche 911 S | Barrick Motor Racing |
| 31st | 84 | Bob Speakman / John Maffucci | Datsun 240Z | |
| 32nd | 85 | John Hulen / Ron Coupland | Porsche 914/6 | |
| 33rd | 5 | Don Yenko / Pedro Vazquez / Jerry Thompson | Porsche 911 S | |
| 34th | 72 | Bill Arnold | Chevrolet Corvette | |
| 35th | 60 | Rusty Bond | Porsche 911 S | |
| 36th | 90 | Ray Walle / Tom Reddy | Mazda RX-3 | |
| 37th | 73 | Clark Howey | Chevrolet Corvette | |
| 38th | 12 | Ford Smith | Chevrolet Corvette | |
| 39th | 53 | Larry Lockhart / Jim Lockhart | Dodge Challenger | |
| 40th | 27 | Ray Mummery / Ben Scott | Porsche 911 S | |
| 41st | 63 | Tim Meehan / Gary Witzenburg | Opel Manta | |
| 42nd | 4 | Stephen Bond / Dale Kreider | Chevrolet Vega | |
| 43rd | 44 | Dale Koch / Arnold Reid | Chevrolet Camaro | |
| 44th | 63 | Barry Ruble / Greg Pastoric | Chevrolet Corvette | |
| 45th | 7 | Clay Young / Eddie Johnson | Chevrolet Camaro | |
| 46th | 22 | Richard Mroz / Dave Mroz | Ford Mustang | |