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Buick LeSabre 400 Convertible

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Description

The Buick LeSabre 400 Convertible was a stylish and comfortable full-size drop-top produced in the early 1960s, designed to offer premium open-air cruising without the high price tag of Buick’s top-tier models. The “400” designation referred not to the engine displacement but to the transmission package—specifically Buick’s “Super Turbine 400” automatic, a smooth-shifting and durable 3-speed unit that became a hallmark of the brand’s luxury and drivability.

Introduced as part of the LeSabre lineup, the 400 Convertible embodied Buick’s balance of style, space, and performance. Under the hood, it was typically powered by a 401 cubic inch “Nailhead” V8, delivering around 325 horsepower. This engine provided strong torque and refined power delivery, making the LeSabre 400 capable of effortless highway cruising and responsive around-town driving.

The exterior design followed the clean, elongated lines of the early ’60s Buicks, with a wide grille, sculpted body sides, and tasteful chrome detailing. The convertible roof stowed neatly behind the rear seat, enhancing the car’s sleek profile when down and creating an elegant silhouette.

Inside, the LeSabre 400 Convertible offered a spacious and upscale interior. Seating for six was common, with bench seats front and rear, though bucket seats and a console were available in certain configurations. Buick emphasized comfort and convenience, so features like power steering, power brakes, a padded dashboard, and available air conditioning made the driving experience smooth and refined.

The ride quality was classic Buick—soft and controlled—thanks to the brand’s attention to suspension tuning and sound insulation. Even at highway speeds with the top down, the LeSabre offered a quiet, stable ride.

Today, the Buick LeSabre 400 Convertible is a desirable classic for those who appreciate full-size American convertibles with V8 power and timeless style. It represents a golden era of motoring where open-top luxury, bold design, and effortless cruising came together in one handsome package.

Additional information

Manufacturer

Buick

Country

USA

Production Started

1969

Production Stopped

1969

Vehicle Type

Bodystyle

Carbio, convertible

Number of Doors

2

Number of Seats

6

Top Speed

112 mph (180 kph)

0-60 mph (0-100 kph)

10.5 s

Power

209 / 284 / 280 @ 4600 rpm

Torque

509 / 375 @ 3200 rpm

Engine Manufacturer

Buick

Engine

V8

Engine Location

Front

Engine Displacement

5724 cc (347.7 cu in)

Valvetrain

OHV

Valves per Cylinder

2

Bore / Stroke

96.5 x 97.8 mm (3.799 x 3.85 in)

Compression Ratio

10.3:1

Cooling System

Water

Charging System

Fuel Type

Petrol

Fuel System

Carburator, 1 x Rochester

Aspiration

Normal

Fuel Capacity

Drive

Rear

Transmission

A3

Steering

Front Brakes

Rear Brakes

Front Suspension

Rear Suspension

Tyre Dimensions

Chassis

Weight

1900 kg (4189 lb)

Length

5550 mm (218.5 in)

Width

2032 mm (80 in)

Height

1387 mm (54.6 in)

Wheelbase

3129 mm (123.2 in)