| Year | 1927 |
| Date | 27-Oct |
| Volume | 57 |
| Issue | 1,381 |
| Page | 393 |
| Category | Internal Combustion |
| Part | 2 |
| Title | Some Notes on the Design of Small Petrol Engines |
| Author | J.Harrison |
| Notes | What power will it give? Cross-section showing overhead valves, port forms, a few words on valve sizes, showing relation of H.P. to revolutions of engine, stroke/bore ratio, valve sixes, some points in valve port design |