PORSCHE RACING HISTORYClaude Ballot-Léna (F)
1983 : Daytona 24 Hours - 1st overall
6 February 1983 - Daytona 24 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 935 L | 935 L | GTP | Bob Wollek (F)/Claude Ballot-Léna (F)/Preston Henn (USA)/A. J. Foyt (USA) | Henn's Swap Shop Racing (USA) | 1st | 1st | 1st | 618 laps |
19 June 1983 - Le Mans 24 Hours - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 47 | Porsche 956 | 956-103 | C | Preston Henn (USA)/Claude Ballot-Léna (F)/Jean-Louis Schlesser (F) | Henns' T-Bird Swap Shop | 10th | 10th | 23rd | 327 laps |