PORSCHE RACING HISTORYPorsche 911 - Chassis No. 911 230 1687
6 February 1972 - Daytona 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 76 | Porsche 911 T | 911 230 1687 | GT2.5 | George Stone (USA)/Bruce Jennings (USA) | Silverstone Racing Team (USA) | DNF | 42nd | 2 laps |
24 March 1973 - Sebring 12 Hours - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 76 | Porsche 911 S | 911 230 1687 | GTU | George Stone (USA)/Mike Downs (USA) | Silverstone Racing Team (USA) | 8th | 2nd | 23rd | 209 laps |
5 February 1984 - Daytona 24 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 51 | Porsche 911 | 911 230 1687 | GTU | Chris Wilder (USA)/Dennis DeFranceschi (USA)/Buz McCall (USA) | Chris Wilder | 52nd | 14th | 66th | 212 laps - DNF |
24 March 1984 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 51 | Porsche 911 | 911 230 1687 | GTU | Van McDonald (USA)/Dennis DeFranceschi (USA) | Chris Wilder | 14th | 5th | 62nd | 222 laps |