26 March 1978 at Minster
| 400cc – 650cc | RH Sidecars (2) | 340cc – 650cc |
| 1- John Britcher | 1- Stuart Jukes & Phil Algar | 1- John Britcher |
| 2- Martin Goodwin | 2- A. Burdett & A. Rouse | 2- Martin Goodwin |
| 3- David Chambers | 3- Ken Thorpe & L. Sunderland | 3- David Chambers |
| 240cc – 350cc | RH Sidecars (1) | 250cc |
| 1- Barry Hazelton | 1- Stuart Jukes & Phil Algar | 1- Brian Webb |
| 2- Richard Wakeling | 2- Ken Thorpe & L. Sunderland | 2- Richard Wakeling |
| 3- David Spain | 3- John Penfold & Bob Penfold | 3- Paul Luff |
| The Jock Cameron Memorial Trophy | ||
| 1- Brian Cornelius | ||
| 2- Keith Sivier | ||
| 3- Clive Pilcher |