| Year | 1931 |
| Date | 12-Nov |
| Volume | 65 |
| Issue | 1,592 |
| Page | 474 |
| Category | Petrol Engine Topics |
| Part | |
| Title | Cylinder Head Design |
| Author | Edgar T.Westbury |
| Notes | Turbulence, flaming rate, heat loss, the flat head, valve ports, the sparking plug, the hemispherical head |