From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
List of special units required for a Bentley O.H.C. Conversion Unit.
| Identifier | ExFiles\Box 82\4\ scan0319 | |
| Date | 10th June 1936 | |
| GRY.{Shadwell Grylls} SWDE. x200 To RHC.{R. H. Coverley - Production Engineer} c. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} E/JNR.{Charles L. Jenner}2/HP.10.6.36. Bentley O.H.C.Conversion Unit. The following special units will be required on this engine. (1) Large oil pump similar to LeC.4288, but using Casing EX.11936 and Gears EX.11937/8. (2) Delco Remy Distributor with leads coming out of the head horizontally as fitted experimentally to Bentley and 20/25 engines. E/JNR.{Charles L. Jenner} | ||