| 1 | Johnnie PARSONS | Wynn's Friction / Kurtis-Kraft | Kurtis Kraft | 1000 | Offenhauser | L4 4.5 | Firestone |
| 2 | Myron FOHR | Bardahl/Carl Marchese | Marchese | ??? | Offenhauser | L4 4.5 | Firestone |
| 3 | Bill HOLLAND | Blue Crown Spark Plug/Moore | Deidt | Tuffanelli Derrico | Offenhauser | L4 4.5 | Firestone |
| 4 | Walt BROWN | Tuffy's Offy | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 5 | George CONNOR | Blue Crown Spark Plug/Moore | Lesovsky | ? | Offenhauser | L4 4.5 | Firestone |
| 7 | Paul RUSSO | Paul Russo & Ray Nichels | Nichels | ??? | Offenhauser | L4 4.5 | Firestone |
| 8 | Lee WALLARD | Blue Crown Spark Plug/Moore | Moore | ??? | Offenhauser | L4 4.5 | Firestone |
| 9 | Andy LINDEN | Bruce & Louis Bromme | Bromme | ??? | Offenhauser | L4 4.5 | Firestone |
| 9 | Bud ROSE | Bruce & Louis Bromme | Bromme | ??? | Offenhauser | L4 4.5 | Firestone |
| 10 | Hal COLE | Tuffy's Offy | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 10 | Bill VUKOVICH | Indianapolis Race Cars | Maserati | 8CTF | Maserati | L8 c 3.0 | Firestone |
| 12 | Henry BANKS | Indianapolis Race Cars | Maserati | 8CTF | Offenhauser | L4 c 3.0 | Firestone |
| 14 | Tony BETTENHAUSEN | Blue Crown Spark Plug/Moore | Deidt | Tuffanelli Derrico | Offenhauser | L4 4.5 | Firestone |
| 15 | Mack HELLINGS | Tuffy's Offy | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 16 | Ted DUNCAN | Tuffy's Offy | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 17 | Joie CHITWOOD | Ervin Wolfe | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 18 | Duane CARTER | Murrell Belanger | Stevens | ??? | Offenhauser | L4 c 3.0 | Firestone |
| 19 | Kenny EATON | Lutes Truck Parts | Bardazon | ??? | Offenhauser | L4 4.5 | Firestone |
| 19 | Ralph PRATT | Lutes Truck Parts | Bardazon | ??? | Offenhauser | L4 4.5 | Firestone |
| 21 | Spider WEBB | Fadely-Anderson/R.A. Cott | Maserati | 8CTF | Offenhauser | L4 4.5 | Firestone |
| 22 | Jimmy DAVIES | Pat Clancy | Ewing | ??? | Offenhauser | L4 4.5 | Firestone |
| 23 | Sam HANKS | Merz Engineering/Milt Marion | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 24 | Bill CANTRELL | Richard Palmer | Adams | ??? | Offenhauser | L4 4.5 | Firestone |
| 24 | Bayliss LEVRETT | Richard Palmer | Adams | ??? | Offenhauser | L4 4.5 | Firestone |
| 25 | Johnny MAURO | Johnny Mauro | Alfa Romeo | 8C-308 | Alfa Romeo | 158 L8 c 1.5 | Firestone |
| 26 | George FONDER | Ray Brady | Deidt | Tuffanelli Derrico | Sparks | L6 c | Firestone |
| 27 | Walt ADER | Sampson Manufacturing | Rae | ??? | Offenhauser | L4 c 3.0 | Firestone |
| 28 | Fred AGABASHIAN | Wynn's Friction / Kurtis-Kraft | Kurtis Kraft | 3000 | Offenhauser | L4 c 3.0 | Firestone |
| 29 | Charles Van ACKER | Redmer | Stevens | ??? | Offenhauser | L4 4.5 | Firestone |
| 31 | Mauri ROSE | Offenhauser/Howard Keck | Deidt | Tuffanelli Derrico | Offenhauser | L4 4.5 | Firestone |
| 33 | Joel THORNE | Thorne Engineering | Kurtis Kraft | ??? | Sparks | L6 c | Firestone |
| 34 | Johnny FEDRICKS | Thomas Kupiec | Kupiec | ??? | Offenhauser | L4 4.5 | Firestone |
| 36 | George LYNCH | Auto Shippers | Snowberger | ??? | Offenhauser | L4 4.5 | Firestone |
| 38 | Duke NALON | Novi Mobil | Kurtis Kraft | ??? | Novi | L8 c 3.0 | Firestone |
| 39 | Danny KLADIS | Federal Engineering | Maserati | 8CTF | Maserati | L8 c 3.0 | Firestone |
| 41 | Milt FANKHAUSER | Karl Hall | Stevens | ??? | Offenhauser | L4 4.5 | Firestone |
| 43 | Chet MILLER | Novi Mobil | Kurtis Kraft | ??? | Novi | L8 c 3.0 | Firestone |
| 44 | Bill CANTRELL | Bowes Seal Fast Racing | Kurtis Kraft | ??? | Offenhauser | L4 4.5 | Firestone |
| 45 | Dick RATHMANN | City of Glendale/A.J. Watson | Watson | Indy Roadster | Offenhauser | L4 4.5 | Firestone |
| 47 | Ralph PRATT | Ed Gdula | Gdula | ??? | Offenhauser | L4 4.5 | Firestone |
| 49 | Jack McGRATH | Jack Hinkle | Kurtis Kraft | 3000 | Offenhauser | L4 4.5 | Firestone |
| 51 | Mark LIGHT | Lee Glessner | Stevens | ??? | Offenhauser | L4 4.5 | Firestone |
| 52 | Dick FRAIZER | Meyer & Iddings | Meyer | ??? | Offenhauser | L4 4.5 | Firestone |
| 52 | Mark LIGHT | Meyer & Iddings | Meyer | ??? | Offenhauser | L4 4.5 | Firestone |
| 54 | Cecil GREEN | John Zink/M.A. Walker | Kurtis Kraft | 3000 | Offenhauser | L4 4.5 | Firestone |
| 55 | Troy RUTTMAN | Bowes Seal Fast Racing | Lesovsky | ? | Offenhauser | L4 4.5 | Firestone |
| 58 | Billy DeVORE | Joe Scopa | Scopa | ??? | Offenhauser | L4 4.5 | Firestone |
| 59 | Pat FLAHERTY | Granatelli-Sabourin/Grancor | Kurtis Kraft | 3000 | Offenhauser | L4 4.5 | Firestone |
| 61 | Jimmy JACKSON | Cummins Diesel | Kurtis Kraft | 3000 | Cummins | L6 c 3.0 | Firestone |
| 62 | Johnny McDOWELL | Peter Wales Trucking | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 63 | Bob GREGG | Esmeralda / Leo Dobry | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 63 | Joe JAMES | Esmeralda / Leo Dobry | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 64 | Bob SWEIKERT | Ray Carter | Wetteroth | ??? | Offenhauser | L4 4.5 | Firestone |
| 65 | Marvin BURKE | Ross Page | Kurtis Kraft | ??? | Duray | L4 c | Firestone |
| 65 | Norm HOUSER | Ross Page | Kurtis Kraft | ??? | Duray | L4 c | Firestone |
| 66 | Cliff GRIFFITH | Tom Sarafoff | Miller | ??? | Offenhauser | L4 4.5 | Firestone |
| 67 | Bill SCHINDLER | Automobile Shippers/Rassey | Snowberger | ??? | Offenhauser | L4 4.5 | Firestone |
| 69 | Duke DINSMORE | Brown Motors | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 74 | Carl FORBERG | Jewell | Miller | ??? | Offenhauser | L4 4.5 | Firestone |
| 75 | Gene HARTLEY | Troy Oil / Joe Langley | Langley | ??? | Offenhauser | L4 4.5 | Firestone |
| 76 | Jim RATHMANN | Pioneer Auto Repair/Lorenz | Wetteroth | ??? | Offenhauser | L4 4.5 | Firestone |
| 77 | Jackie HOLMES | Norm Olson | Olson | Special | Offenhauser | L4 4.5 | Firestone |
| 78 | Cy MARSHALL | Vulcan Tool | R Miller | ??? | R Miller | ??? | Firestone |
| 79 | Chuck LEIGHTON | Cantarano | Cantarano | Cannonball | Wayne | L6 4.5 | Firestone |
| 81 | Jerry HOYT | Ludson Morris | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 82 | Joe JAMES | Bob Estes | Weidel | ??? | Mercury | V8 | Firestone |
| 83 | Al MILLER | Trainor Auto Parts | Miller | RE4D | Miller | L6 c | Firestone |
| 84 | Mike BURCH | George Hoster Inc. | Maserati | 8CTF | Maserati | L8 c 3.0 | Firestone |
| 85 | Manuel AYULO | Coast Grain | Maserati | 8CTF | Offenhauser | L4 4.5 | Firestone |
| 85 | Jim RIGSBY | Coast Grain | Maserati | 8CTF | Offenhauser | L4 4.5 | Firestone |
| 87 | Bill VUKOVICH | REC / NJ Rounds | Rounds Rocket | Special | Offenhauser | L4 4.5 | Firestone |
| 98 | Walt FAULKNER | Grant Piston Ring/Agajanian | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 99 | Emil ANDRES | Murrell Belanger | Kurtis Kraft | ??? | Offenhauser | L4 c 3.0 | Firestone |
| 99 | Kenny EATON | Murrell Belanger | Kurtis Kraft | ??? | Offenhauser | L4 c 3.0 | Firestone |