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
Rear Axle:
Semi-floating type, hypoid bevel drive.
Brakes:
Servo assisied hydrostatic brakes, hydraulic
operation on
front wheels, hydraulic and mechanical operation
on rear wheels.
Steering:
Cam-and-roller type
Suspension:
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.