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).
Comparative table of engine specifications for various car manufacturers.
| Identifier | ExFiles\Box 91\1\ scan0504 | |
| Date | 19th May 1937 guessed | |
| 300 PTO TABLE HEADERS: ENGINE & TYPE, CU INS DISPLACEMENT, INCHES BORE & STROKE, LENGTH OVER BLOCK INCHES, AMOUNT OF WATER BETWEEN BORES INCHES, WEIGHT ALL ON BUT NO TRANSMISSION, CYL WALL THICKNESS, NO OF MAIN BEARINGS, DIA OF MAINS, DIA OF BIG ENDS, H.P. AT REVS, M.E.P. MAX. FACTOR, CYLINDER CENTRES TABLE DATA: Row 1: - ENGINE & TYPE: OLDSMOBILE SIX SIDE V - CU INS DISPLACEMENT: 229.7 - INCHES BORE & STROKE: 3 7/16 & 4 1/8 - LENGTH OVER BLOCK INCHES: 27.5 - AMOUNT OF WATER BETWEEN BORES INCHES: .175 - WEIGHT: 620 - CYL WALL THICKNESS: .225 - NO OF MAIN BEARINGS: 4 - DIA OF MAINS: 2.6 - DIA OF BIG ENDS: 2.1 - M.E.P. MAX. FACTOR: 116.0 - CYLINDER CENTRES: 4.06 - Notes: IRON HEAD Row 2: - ENGINE & TYPE: O.H.V VAUXHALL 625 H.P. - CU INS DISPLACEMENT: 196.1 - INCHES BORE & STROKE: 3 1/4 & 4.0 - LENGTH OVER BLOCK INCHES: 27.6 - AMOUNT OF WATER BETWEEN BORES INCHES: .225 - CYL WALL THICKNESS: .200 - NO OF MAIN BEARINGS: 4 - DIA OF MAINS: 2.25 - DIA OF BIG ENDS: 2.0 - H.P. AT REVS: 80 @ 3600 - CYLINDER CENTRES: 3.85 - Notes: IRON HEAD Row 3: - ENGINE & TYPE: 6 ROYAL CHRYSLER SIDE VALVE - CU INS DISPLACEMENT: 228.1 - INCHES BORE & STROKE: 3 3/8 & 4 1/4 - LENGTH OVER BLOCK INCHES: 27.0 - AMOUNT OF WATER BETWEEN BORES INCHES: NIL - WEIGHT: 642 - CYL WALL THICKNESS: .200 - NO OF MAIN BEARINGS: 4 - DIA OF MAINS: 2.65 - DIA OF BIG ENDS: 2.2 - H.P. AT REVS: 93 @ 3600 - M.E.P. MAX. FACTOR: 111 @ 1200 - Notes: IRON HEAD. Row 4: - ENGINE & TYPE: LINCOLN 12 ZEPHYR. - CU INS DISPLACEMENT: 267.3 - INCHES BORE & STROKE: 2 3/4 & 3 3/4 - LENGTH OVER BLOCK INCHES: 25 1/4 - AMOUNT OF WATER BETWEEN BORES INCHES: 5/16 - WEIGHT: 581 - CYL WALL THICKNESS: 3/16 - NO OF MAIN BEARINGS: 4 - DIA OF MAINS: 2.50 - DIA OF BIG ENDS: 2 1/8 - H.P. AT REVS: 110 @ 3900 - Notes: ALUM HEADS Row 5: - ENGINE & TYPE: MORRIS 6 CYL. - CU INS DISPLACEMENT: 212.6 - INCHES BORE & STROKE: 3.23 & 4.33 - LENGTH OVER BLOCK INCHES: 31.6 - NO OF MAIN BEARINGS: 4 Row 6: - ENGINE & TYPE: CHEVROLET O.H.V. 6 CYLINDER. - CU INS DISPLACEMENT: 212.0 - INCHES BORE & STROKE: 3.5 & 3.75 - WEIGHT: 600 - NO OF MAIN BEARINGS: 4 - DIA OF BIG ENDS: 2.25 BY 1.25 Row 7: - ENGINE & TYPE: 25/30 O.H.V. 6 CYLINDER. - CU INS DISPLACEMENT: 260 - INCHES BORE & STROKE: 3.5 & 4.5 - LENGTH OVER BLOCK INCHES: 26.5 - WEIGHT: 580 - NO OF MAIN BEARINGS: 7 Row 8: - ENGINE & TYPE: DODGE 6 3 1/4 BORE. - CU INS DISPLACEMENT: 217 - INCHES BORE & STROKE: 3 1/4 & 4 3/8 - LENGTH OVER BLOCK INCHES: 23 3/8 - AMOUNT OF WATER BETWEEN BORES INCHES: NIL - WEIGHT: 562 - NO OF MAIN BEARINGS: 4 - DIA OF BIG ENDS: 2" DIA 1" WIDE - H.P. AT REVS: 87 @ 3600 - Notes: IRON HEAD Row 9: - ENGINE & TYPE: PLYMOUTH. - CU INS DISPLACEMENT: 201.3 - INCHES BORE & STROKE: 3 1/8 & 4 3/8 - AMOUNT OF WATER BETWEEN BORES INCHES: NIL - WEIGHT: 552 - H.P. AT REVS: 82 @ Row 10: - ENGINE & TYPE: PHOENIX - CU INS DISPLACEMENT: 205 - INCHES BORE & STROKE: 3 1/4 & 4 1/4 - LENGTH OVER BLOCK INCHES: 25 Row 11: - ENGINE & TYPE: PEREGRINE - CU INS DISPLACEMENT: 144 - INCHES BORE & STROKE: 2.725 & 4.125 - LENGTH OVER BLOCK INCHES: 21 1/2 - WEIGHT: 417 - NO OF MAIN BEARINGS: 8 - H.P. AT REVS: 67 @ 4000 Row 12: - ENGINE & TYPE: PH. III - CU INS DISPLACEMENT: 448 - INCHES BORE & STROKE: 3.250 & 4.50 - LENGTH OVER BLOCK INCHES: 30 - WEIGHT: 890 - NO OF MAIN BEARINGS: 7 - H.P. AT REVS: 190 @ 3600 Row 13: - ENGINE & TYPE: J.{Mr Johnson W.M.} III - CU INS DISPLACEMENT: 273 - INCHES BORE & STROKE: 3.4 & 5.0 - LENGTH OVER BLOCK INCHES: 28 - WEIGHT: 480 - NO OF MAIN BEARINGS: 7 Row 14: - ENGINE & TYPE: STUDEBAKER 8 CYLINDER - CU INS DISPLACEMENT: 250 - INCHES BORE & STROKE: 3 1/16 - AMOUNT OF WATER BETWEEN BORES INCHES: 1/8 - H.P. AT REVS: 115 Row 15: - ENGINE & TYPE: GRAHAM 5 - CU INS DISPLACEMENT: 199.1 - INCHES BORE & STROKE: 3 1/4 & 4 - H.P. AT REVS: 106 @ 4000 Row 16: - ENGINE & TYPE: TERRAPLANE. - CU INS DISPLACEMENT: 212 - INCHES BORE & STROKE: 3 x 5.00 - LENGTH OVER BLOCK INCHES: 21 1/8 - AMOUNT OF WATER BETWEEN BORES INCHES: NIL - WEIGHT: 500 - NO OF MAIN BEARINGS: 3 - H.P. AT REVS: 94 @ 3700 - Notes: ALUM HEAD. Row 17: - ENGINE & TYPE: OLDS 8 - CU INS DISPLACEMENT: 257.2 - INCHES BORE & STROKE: 3 1/4 & 3 7/8 - LENGTH OVER BLOCK INCHES: 32 7/8 - WEIGHT: 691 - NO OF MAIN BEARINGS: 5 - H.P. AT REVS: 110 @ 3600 - M.E.P. MAX. FACTOR: 115 Row 18: - ENGINE & TYPE: PACARD - CU INS DISPLACEMENT: 282 - INCHES BORE & STROKE: 3 1/4 & 4 1/4 - NO OF MAIN BEARINGS: 5 - H.P. AT REVS: 106 @ 3600 - M.E.P. MAX. FACTOR: 112 Row 19: - ENGINE & TYPE: BUICK SERIES 40 - CU INS DISPLACEMENT: 233 - INCHES BORE & STROKE: 3 3/32 & 3 7/8 - LENGTH OVER BLOCK INCHES: 31.5 - WEIGHT: 690 - NO OF MAIN BEARINGS: 5 - H.P. AT REVS: 92.5 @ 3500 - M.E.P. MAX. FACTOR: 115 | ||