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Armstrong Siddeley Sapphire 346

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Description

The Armstrong Siddeley Sapphire 346 was a luxury saloon produced by the British manufacturer Armstrong Siddeley between 1952 and 1958. Positioned as the company’s flagship model, it was designed to compete with other high-end British cars of the era, offering a combination of elegance, advanced engineering, and refined performance.

Powered by a 3.4-liter inline-six engine, the Sapphire 346 was available in two versions: a standard model with a single-carburetor producing around 125 horsepower and a more powerful twin-carburetor version delivering up to 150 horsepower. It was offered with either a four-speed manual transmission, including Armstrong Siddeley’s signature pre-selector gearbox, or a Rolls-Royce-derived Hydramatic automatic transmission, providing a smooth and effortless driving experience.

The Sapphire 346 featured classic British styling with a prominent upright grille, sweeping fenders, and a stately saloon body. The interior was luxuriously appointed with high-quality leather, polished wood trim, and spacious seating, ensuring maximum comfort for both driver and passengers.

With its combination of performance, craftsmanship, and refinement, the Sapphire 346 was well-received, appealing to professionals, dignitaries, and those seeking an understated yet prestigious automobile. Today, it remains a respected classic among enthusiasts, reflecting Armstrong Siddeley’s dedication to quality engineering and luxury motoring.

Additional information

Manufacturer

Armstrong Siddeley

Country

UK

Production Started

1952

Production Stopped

1954

Vehicle Type

Bodystyle

Sedan

Number of Doors

4

Number of Seats

5

Top Speed

91 mph (146 kph)

0-60 mph (0-100 kph)

16 s

Power

88 / 120 / 118 @ 4200 rpm

Torque

224 / 165 @ 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

1575 kg (3472 lb)

Length

4902 mm (193 in)

Width

1830 mm (72 in)

Height

1600 mm (63 in)

Wheelbase

2896 mm (114 in)