17 July 1977 at Chulmleigh
| 500cc | RH Sidecars | 350cc |
| 1- Chris Henriksen | 1- Roger Measor & Maurice Owen | 1- Doug Dearden |
| 2- Richard Elsick | 2- David John & R. Stoneman | 2- Alan Cox |
| 3- Ian Barclay | 3- Ken Jones & Steve Wheeler | 3- Paul Jeffrey |
| 4- Michael Semmonds | 4- Pete Robson & Dave Hopes | 4- John Parker |
| 5- John Williams | 5- Richard Peberdy & Jim Head | 5- Dave Threadingham |
| 185 | 6- Jez Phillips & Peter Dulake | 6- Adrian Kessell |
| 250cc | ||
| 1- Keith Richards | ||
| 2- Richard Eslick | ||
| 3- Adrian Kessell | ||
| 4- Dave Main | ||
| 5- Graham Biles | ||
| 6- David Wood |