Bore: 3 3/4" (95mm)
Stroke: 4 1/2 (114mm)
Capacity: 298.2 cu.ins (4887c.c.)
Compression Ratio: 6.6 : I
Firing Order: 1, 4, 2, 6, 3, 5
Tappet clearance: Inlet .006"(cold)(.15 m/m)
Contact breaker gap: .019"-.021" (.45m/m-.55m/m)
Sparking plug gap: .025"(.65m/m)
Oil sump capacity: 16 pints
Coolant capacity: (Engine and Radiator) 3 1/2 Gallons, Imperial
Semi-floating type, hypoid bevel drive.
Servo assisied hydrostatic brakes, hydraulic operation on
front wheels, hydraulic and mechanical operation on rear wheels.
Independent front wheel suspension incorporating coil springs,
hydraulic shock dampers and torsion rod stabiliser
Rear suspension by semi-elliptic springs in combination with controllable hydraulic shock dampers. An axel control rod is fitted which, together with the road springs, takes the torque and brake reaction.
Tyres: 8.20" X 15"
Like their predecessors which had only differed in outward appearance in their radiators and badging, the new models were essentially the same. The similarity went further than hitherto, however, because for the first time there were no differences technically.
Privately the Company was concerned
that the severe corrosion
they had experienced on their Standard Steel models might indicate
a less than acceptable life expectancy of a chassis-less product.
A unit-construction Rolls-Royce, whose vital structures shortened
the car's life as a result of rusting, would damage the reputation of
the company's products in a way that would be difficult to remedy.
From the very beginning an automatic
gearbox, the four speed
unit, was standard for the Silver Cloud and S-type. To special order, a car could be fitted with a manual gear change. This was requested only rarely, and from 1957 onward a manual gearbox was no longer offered. The optional extra most often requested was power steering.