CARCARETOOL VEHICLE GUIDE

Austin-Healey 100

Austin-Healey 100 — convertible, 2660 cc I4. Explore engine specifications, fuel economy, dimensions, tire sizes, seating, maintenance and tire-pressure guidance.

Engine2660 cc I4

Transmission3-speed (series BN1) or 4-speed (series BN2) manual

About the Austin-Healey 100

Austin-Healey 100 is a convertible in the convertible class. The available vehicle data lists 2660 cc I4 as an engine configuration, paired with 3-speed (series BN1) or 4-speed (series BN2) manual. Public source material describes the model in the context of its design, market positioning and vehicle history.

This Austin-Healey 100 guide focuses on the details drivers commonly want to know, including engine information for 2660 cc I4 and 3-speed (series BN1) or 4-speed (series BN2) manual transmission information. Exact specifications should be matched to the relevant model year and market.

Austin-Healey 100 specifications at a glance

Use this table for the model-level essentials. Exact figures may vary by year, trim, engine and market.

Make	Austin-Healey
Model	100
Model years	Not specified
Body style	convertible
Vehicle class	convertible
Manufacturer	Austin-Healey (BMC)
Production	1953–1956
Market / country	ES, FI, NL, NZ

Engine, transmission and performance

Engine information for the Austin-Healey 100 includes 2660 cc I4.. Transmission information includes 3-speed (series BN1) or 4-speed (series BN2) manual.

Engine	2660 cc I4
Transmission	3-speed (series BN1) or 4-speed (series BN2) manual

Dimensions, weight and practicality

Dimensions and capacity figures are presented as published source data when available.

Wheelbase	90 in (2,286 mm)
Length	151 in (3,835 mm)
Width	60 in (1,524 mm)
Height	49.25 in (1,251 mm)

Austin-Healey 100 other specifications

Name	Austin-Healey 100
Image	1956 Austin-Healey 100 Roadster (cropped).JPG
Caption	1956 Austin-Healey 100

Austin-Healey 100 generations and model years

Where a source covers multiple generations, CarCareTool selects the generation(s) that best match this catalog model instead of mixing unrelated variants.

Generation / scope	Years	Engine	Transmission	Drivetrain
Austin-Healey 100	1953–1956	2660 cc I4	3-speed (series BN1) or 4-speed (series BN2) manual	Not specified

Austin-Healey 100 features and equipment

Features shown below are tied to the available source material for this model. Equipment can vary by year, trim and market.

Standard or documented features

✓The 100M components (including the high compression pistons) were also available as the Le Mans Engine Modification Kit, which could be installed in either a BN1 or BN2 with the engine in situ, improving the power output to approximately 100 bhp at 4500 rpm

TIRE PRESSURE

Recommended tire pressure for Austin-Healey 100

Check the vehicle placard or owner’s manual for the manufacturer’s cold inflation pressure. CarCareTool estimates are clearly labelled when an exact verified value is unavailable.

Normal load34 PSI front32 PSI rear

Fully loaded36 PSI front35 PSI rear

Load condition	Front	Rear	Status
Normal	34 PSI	32 PSI	Estimate
Fully loaded	36 PSI	35 PSI	Estimate

Calculate how much air to add

Frequently asked questions about Austin-Healey 100

These FAQs are generated automatically for this specific vehicle from the specifications, features and ownership data available in CarCareTool. Questions are selected by relevance so the page focuses on details that can actually be answered for this model.

What engine does the Austin-Healey 100 have?

The available source data lists the Austin-Healey 100 engine as 2660 cc I4. Engine availability can differ by model year and market.

What tire pressure should I use for the Austin-Healey 100?

For the correct setting, use the cold inflation pressure on the vehicle placard or in the owner’s manual. When CarCareTool does not have a verified configuration-specific value, its starting estimate is 34 PSI front and 32 PSI rear for normal load. This is an estimate, not an OEM recommendation.

What is the best engine oil for the Austin-Healey 100?

There is no single best engine oil for every Austin-Healey 100 configuration. Use the viscosity grade and manufacturer approval specified for the exact engine in the owner’s manual.

What body style is the Austin-Healey 100?

The Austin-Healey 100 is classified as a convertible.

What are the dimensions of the Austin-Healey 100?

The available source data lists length 151 in (3,835 mm), width 60 in (1,524 mm), height 49.25 in (1,251 mm), and wheelbase 90 in (2,286 mm).

What transmission does the Austin-Healey 100 have?

The available source data lists 3-speed (series BN1) or 4-speed (series BN2) manual transmission options for the Austin-Healey 100.

Who makes the Austin-Healey 100?

The manufacturer listed for the Austin-Healey 100 is Austin-Healey (BMC).

When was the Austin-Healey 100 produced?

The available source data describes production as 1953–1956.

Where was the Austin-Healey 100 built?

The available source record lists assembly information as United Kingdom: Longbridge, England (Longbridge plant)United Kingdom: West Bromwich, England.

What class of car is the Austin-Healey 100?

The Austin-Healey 100 is listed in the convertible class.

Which markets or countries sold the Austin-Healey 100?

The CarCareTool catalog currently associates the Austin-Healey 100 with ES, FI, NL, NZ. Market availability and specifications can differ.

What came after the Austin-Healey 100?

The available vehicle data lists Austin-Healey 100-6 as a successor where applicable.

How often should I check the tire pressure on the Austin-Healey 100?

Check the tires regularly and before long trips, with the tires cold. Use the vehicle placard or owner’s manual as the source of the manufacturer’s recommended pressure.

Should I use the tire sidewall pressure for the Austin-Healey 100?

No. The maximum pressure printed on the tire sidewall is not automatically the vehicle’s recommended setting. Use the vehicle placard or owner’s manual for the correct cold inflation pressure.

Does the recommended tire pressure change when the Austin-Healey 100 is fully loaded?

It can. Many vehicles specify a different cold pressure for heavier loads. Check the vehicle placard or owner’s manual for the exact loading condition.

Can the Austin-Healey 100 have different tire pressures front and rear?

Yes. Some vehicles specify different front and rear pressures because axle loads and vehicle configurations differ. Follow the exact vehicle recommendation where available.

Why can mileage differ from the published figure for the Austin-Healey 100?

Published fuel economy is measured under a defined test method. Real-world mileage can vary with traffic, speed, temperature, tire pressure, payload, maintenance and driving style.

Data sources and verification are available in the page editor; exact specifications can vary by year, market, trim and engine.

Austin-Healey 100 images

Vehicle images are shown from the stored source image records when available.