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Armstrong Siddeley Sapphire 346 Mk II

Category:

Description

The Armstrong Siddeley Sapphire 346 Mk II was an updated version of the original Sapphire 346, offering enhanced performance and refinement. Introduced in the mid-1950s, it retained the same fundamental design but featured improvements in engineering and luxury to compete with other high-end British automobiles of the era.

Powered by a 3.4-liter inline-six engine, the Mk II version benefited from refined carburetion and tuning, producing improved power and smoother operation. The car was available with either Armstrong Siddeley’s signature pre-selector gearbox or an optional Rolls-Royce-derived Hydramatic automatic transmission, providing effortless driving characteristics. Its suspension and braking systems were also refined for better ride comfort and handling.

The design remained elegant and stately, with a distinctive upright grille, flowing bodywork, and a well-proportioned saloon silhouette. Inside, the cabin featured the finest materials, including high-quality leather upholstery and polished wood trim, ensuring a luxurious experience for both driver and passengers.

Well-regarded for its reliability, craftsmanship, and dignified presence on the road, the Sapphire 346 Mk II solidified Armstrong Siddeley’s reputation for producing high-quality luxury automobiles. Today, it is considered a desirable classic, appreciated for its blend of performance, comfort, and timeless British design.

Additional information

Manufacturer

Armstrong Siddeley

Country

UK

Production Started

1955

Production Stopped

1958

Vehicle Type

Bodystyle

Sedan

Number of Doors

4

Number of Seats

5

Top Speed

95 mph (153 kph)

0-60 mph (0-100 kph)

14 s

Power

92 / 125 / 123 @ 4400 rpm

Torque

247 / 182 @ 2000 rpm

Engine Manufacturer

Armstrong Siddeley

Engine

Inline 6

Engine Location

Front

Engine Displacement

3435 cc (208.6 cu in)

Valvetrain

OHV

Valves per Cylinder

2

Bore / Stroke

90 x 90 mm (3.543 x 3.543 in)

Compression Ratio

7:1

Cooling System

Water

Charging System

Fuel Type

Petrol

Fuel System

Carburator, 1 x Stromberg

Aspiration

Normal

Fuel Capacity

Drive

Rear

Transmission

M4

Steering

Front Brakes

Rear Brakes

Front Suspension

Rear Suspension

Tyre Dimensions

Chassis

Weight

1610 kg (3549 lb)

Length

4902 mm (193 in)

Width

1830 mm (72 in)

Height

1600 mm (63 in)

Wheelbase

2896 mm (114 in)