| Year | 1949 |
| Date | 10-Feb |
| Volume | 100 |
| Issue | 2,490 |
| Page | 171 |
| Category | Internal Combustion |
| Part | |
| Title | B.H.P. Tests on Petrol Engines |
| Author | R.E.Mitchell |
| Notes | Valve events, cam profiles, magnesium alloy timing case and dural ball-race end-cap, underneath view of the piston, four views of the completed engine |