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 specifications for the engine and chassis units.
| Identifier | ExFiles\Box 82\4\ scan0203 | |
| Date | 14th December 1935 | |
| -2- HS{Lord Ernest Hives - Chair}/No.4/KW.14.12.35. ENGINE UNIT. (1) The final big bore engine unit, which will include the latest valve gear. (2) New air intake silencer and bend to suit large bore unit. (3) Hall's metal bearings throughout. (4) Larger carburetters and larger induction pipe. (5) Cantilever throttle controls. (6) 10" Borg & Beck clutch with ventilated casing. (7) Delco Remy distributor. (8) Large slipper wheel. (9) Stellited low expansion valves. (10) 45º helix angle timing gears. CHASSIS. (1) 20/25 type of rubber engine mounting. (2) Cantilever pedals. (3) Centrally mounted wings and radiator. (4) 14" lightened drums with reduced arc of embrace. (5) Modified and lightened exhaust system to suit big bore engine. (6) Lightened petrol tank with outside filler. (7) Strengthened pivots. (8) Lighter and smaller radiator - Marston Mark VI. (9) Filter in a position to reduce vapour lock. | ||