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).
Comparison of engine specifications for models 30-EX and 33-EX.
| Identifier | ExFiles\Box 91\1\ scan0175 | |
| Date | 20th December 1935 | |
| ENGINE SPECIFICATIONS FOR COMPARISON. 30-EX. Flywheel & Clutch - LOP. G.82627 Flywheel G.82607 (light) Clutch - single plate (RR). Crankshaft - LOP. E.86189 E.86165 V.C.M. Con. Rods. LOP. E.86125 LeG.3860. Strap Type. Lead Bronze Bearings. Pistons E.86672 - Semi-split. .500" longer skirt. 33-EX. Same LOP. Hs.{Lord Ernest Hives - Chair}1975 (heavy). Borg & Beck. Same Same. White metal Bearings. E.87347 - Die Cast. Fully split. | ||