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 part modifications and specifications with applicable car models and quantities.
| Identifier | ExFiles\Box 6\6\ 06-page397 | |
| Date | 13th December 1937 guessed | |
| -2- PART. CARS. G.VI. NO.OFF (21) Engine Cylinder head complete to EW.1296. 24,28. 2 (22) Up-to-date rockers and rocker shaft to EW.1408/9/10. 24,25,28. 3 (23) Solid cyl. blocks can be fitted EW.1364 if eccentric studs are fitted as on No.6. unit. 24,28. 2 (24) Pistons to have ring grooves modified to EW.1424 and latest rings which RM{William Robotham - Chief Engineer}/Mths.{Reg Matthews} will supply. " " 2 (25) Put groove in rear main bearing. " " 2 (26) Return to standard spring drive and damper to LOP.EW.1423) with correct damping springs Lec.5762. Holes in outer rim of damper to be blanked off. Ensure annulus in BZ/PC bushes. } 25,28. 2 (27) A.C. bye-pass filter as on No.6. unit. } 24,25,28. 3 (28) Standard relief valve springs. Main E.88790. Rockers E.1542. } " " " 3 (29) Increased inertia crank balance weights to E.1554/5 } " " " 3 (30) Camshaft to EW.1416. 28. 1 Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} | ||