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Engines of the Silver Shadow:

Menu engines

The 6230 cc engine

The 6750 cc engine

 


Specifications of the 6230 cc V8



The Rolls-Royces and Bentleys up to and including chassisnumber 8741 (modelyear 1969) were provided with a 6230 cc 8-cylinder engine in V-shape. This engine had the next specifications:

Aspect

Value

Type

Rolls-Royce V8

Block material

High silicon content aluminium alloy with wet liners of cast iron

Cylinders

Vee unit, 90 degrees, 8 cylinders

Cooling

Water

Bore and stroke

104,1 x 91,4 mm

Capacity

6230 cc

Shaft bearings

5

Valves

2 per cylinder

Camshaft

1, mounted in the engine block

Compression ratio

9.0:1 (optional 8.0:1 was available, especially for regions with a worse quality of fuel)

Fuel system

Twin SU-carburettors and automatic choke

Maximum power

Not officially released. Estimated power is 200 hp at approximately 4000 rpm

Maximum torque

Not officially released

Transmission

4-speed Rolls-Royce/GM automatic transmission for RHD cars until summer 1968; 3-speed GM400 automatic transmission for LHD cars and from summer 1968 for all cars

Ratios
Top
3rd
2nd
1st
Reverse

4-speed Rolls-Royce/GM Hydramatic
3.08:1
4.466:1
8.10:1
11.77:1
13.24:1

Ratios
Direct
Intermediate
Low
Reverse

3-speed GM400
3.08:1
4.558:1
7.638:1
6.406:1



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