| No |
Pilote |
Team |
Voiture |
| 1 | Jo Siffert/Derek Bell | John Wyer Automotive Engine | Porsche 917K |
| 2 | Pedro Rodriguez/Jackie Oliver | John Wyer Automotive Engine | Porsche 917K |
| 3 | Vic Elford/Gérard Larrousse | Martini International Racing | Porsche 917K |
| 5 | Jacques Duval/George Nicholas/Bob Bailey | Jacques Duval | Porsche 914/6 GT |
| 6 | Mark Donohue/David Hobbs | Roger Penske/Kirk F. White | Ferrari 512M |
| 11 | Don Yenko/Tony DeLorenzo/Jerry Thompson | Troy Promotions Inc | Chevrolet Corvette |
| 12 | Jerry Thompson/John Mahler | Troy Promotions Inc | Chevrolet Corvette |
| 14 | C.C. Canada/Bob Christiansen | Boykin Auto Repair | Chevrolet Camaro |
| 15 | Michael Keyser/Bruce Jennings | Toad Hall Racing | Porsche 911S |
| 16 | Bobby Rinzler/Clive Baker | Ring Free Oil Racing Team | Chevron B16 Ford |
| 17 | Tom Fraser/Charles Reynolds/Jean Sage | Ring Free Oil Racing Team | Chevron B16 BMW |
| 18 | Janet Guthrie/Rosemary Smith | Ring Free Oil Racing Team | Chevron B16 Ford |
| 19 | Tom Ciccone/Len Greenhalgh/Dick Roberts | Thomas T. Ciccone Jr | Chevrolet Camaro |
| 20 | Masten Gregory/Gregg Young | Young American Racing Team | Ferrari 512M |
| 21 | Luigi Chinetti Jr/George Eaton | North American Racing Team | Ferrari 312P/71 |
| 22 | Peter Revson/Swede Savage | North American Racing Team | Ferrari 512M |
| 23 | Ronnie Bucknum/Sam Posey | North American Racing Team | Ferrari 512S |
| 24 | Harley Cluxton/Bob Grossman | North American Racing Team | Ferrari 365 GTB/4 |
| 25 | Mario Andretti/Jacky Ickx | Spa Ferrari SEFAC | Ferrari 312PB |
| 26 | Chuck Parsons/David Weir | North American Racing Team | Ferrari 512S |
| 28 | Ralph Meaney/Gary Wright/Forry Laucks | Ralph Meaney Inc | Porsche 914/6 GT |
| 29 | Stephen Behr/Charles Pete Conrad/John Buffum | Ralph Meaney Inc | Porsche 914/6 GT |
| 31 | Jim Locke/Bert Everett | Waterville Estates | Porsche 911T |
| 32 | Andrea de Adamich/Henri Pescarolo | Autodelta SpA | Alfa Romeo T33/3 |
| 33 | Nanni Galli/Rolf Stommelen | Autodelta SpA | Alfa Romeo T33/3 |
| 34 | Nino Vaccarella/Toine Hezemans | Autodelta SpA | Alfa Romeo T33/3 |
| 35 | Larry Wilson/Vincent P.Collins | Collins-Wilson Racing Enter | Chevrolet Camaro |
| 38 | Manuel Quintana/John Belperche/Reinaldo Almeida | John P. Belperche | Shelby GT500 |
| 39 | Ash Tisdelle/Peter Kirill | K & T Enterprises | Porsche 911S |
| 40 | John Hotchkis/Robert Kirby | Bozzani Porsche Inc | Porsche 911S |
| 42 | Luis Sereix/Javier Garcia/Ralph Noseda | Garcia Racing | Chevrolet Camaro |
| 43 | Manuel Garcia/Santiago Gonzalez/Norberto Mastandrea | Garcia Racing | Chevrolet Chevy II |
| 45 | Paul Pettey/Tom Dutton | Reventlow-Pettey Autos | Ford Mustang |
| 46 | Bob Gray/Terry Keller/Len Magner | Sebring Racing Inc | Ford Mustang |
| 47 | John Tremblay/Bill McDill | Bruce Behrens Racing | Chevrolet Camaro |
| 48 | John Greenwood/Dick Smothers | John Greenwood | Chevrolet Corvette |
| 50 | Allan Barker/Gene Harrington | John Greenwood | Chevrolet Corvette |
| 51 | Jim Gammon/Dean Donley | Waldron Motors Racing | MGB |
| 52 | Ben Scott/Lowell Lanier/Dave Houser | Waldron Motors Racing | MGB |
| 54 | Anatoly Arutunoff/Bill Pryor/Brian Goellnicht | Automobiles of Italy | Abarth 2000SP |
| 56 | Sepp Greger/Hans-Dieter Weigel | Josef Greger | Porsche 907 |
| 57 | Dave Heinz/Robert R. Johnson/Or Costanzo | Dave Heinz Racing | Chevrolet Corvette |
| 58 | Mike Rahal/Werner Frank/Hugh Wise | Nationwide Food Brokers | Porsche 906 |
| 59 | Peter Gregg/Hurley Haywood | Brumos Porsche Audi Corp | Porsche 914/6 GT |
| 60 | Michael Walker/Daryl Springer | Wheel Sport Enterprises | Porsche 911S |
| 61 | Hugh Kleinpeter/Tony Belcher | Promotional Advertising Cor | Lola T210 Ford |
| 63 | John Elliott/Don Gwynne Jr | Preston Hood Chevrolet | Chevrolet Camaro |
| 66 | Richard Small/Robert Fordyce | Performance Automobile | Chevrolet Camaro |
| 71 | Vince Gimondo/Chuck Dietrich | Takondo Racing | Chevrolet Camaro |
| 72 | Bob Mitchell/Charlie Kemp | Robert R. Mitchell | Chevrolet Camaro |
| 74 | Merv Rosen/Dick Jacobs | Dr. Mervin Rosen | Porsche 906 |
| 81 | Ray Walle/Tom Davey/Tom Reddy | Ray Walle Enterprises | Porsche 911S |
| 84 | Ron Goldleaf/Del Russo Taylor/Bob Wheat | Del Taylor | Alfa Romeo GTV |
| 86 | Cliff Gottlob/Ed Lowther | Cliff Gottlob | Chevrolet Corvette |
| 88 | John Oliver/John Maynard/Peter Flanagan | S-Car-Go Racing | Chevrolet Camaro |
| 89 | Bert Gafford/Houghton Smith | H. Houghton Smith | Chevrolet Camaro |
| 92 | John Cordts/Don Pike | B.F.Goodrich Tire Co | Chevrolet Camaro |
12 Heures de Sebring 1971