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 engine components with corresponding part numbers and specifications.
| Identifier | ExFiles\Box 98\4\ scan0049 | |
| Date | 2nd December 1938 | |
| -3- Rm{William Robotham - Chief Engineer}/Cr.{Mr Cra???ster / Mr Chichester}1/MH.{M. Huckerby}2.12.38. Sec. E.{Mr Elliott - Chief Engineer} L.O.P. 5030 Connecting Rod. EB.4192 Normal machined "all over" con. rods. 5040 Piston To be held up. 5050 Cylinder. EW.1379 To include Cyl. head (Mod. cores) EW.1922 Cyl. block (mod. cores). EW.1923. Hold up cyl. head gasket. 5060 Valves & Fittings EB.4310 .4 Carbon push rods (forgings from Belgrave). Vandervell rocker bushes. c/SLV. Motor Component inlet valves. The following should not be used: Top spring washer EW1925 Sealing washer EW.1926 Use std. Wraith parts. 5070 Inlet pipes. EB.4233 To L.O.P. 5080 Carburetter. Carburetter specification see Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} later. 5082 Carb. Air Silencer. To be held up. 5090 Cam shaft. EB.3569 Cam shaft EB.3466 Cam-wheel as up-to-date Wraith. 5100 Dynamo Drive. To be held up. 5101 Water pump Drive. EW.1526 As L.O.P. 5120 Governor Drive. EW.1706 To suit DW.426 R.R. distributor. 5160 Water Pump. EW.1988 As L.O.P. 5170 Oil Pump EW.973 As L.O.P. 5180 Whlcs. & Fittings. EW.1491 As l.o.p. 5190 Water Connections EB.3752 As L.O.P. 5200 Oil Fttgs. Pet. drain pipe. EB.4266 As L.O.P. | ||