Big Healey Guide

Austin Healey 100

Production numbers: 14,634
BN1 May 1953-June 1955
Open 2-seater, 4-cylinder engine, 2660cc, twin 1.5” SU carburetors; 3-speed with overdrive.
BN2 August 1955-August 1956
Same as BN1, with a 4-speed, improved brakes and suspension.

Austin-Healey 100S

Production Dates: February 1955-November 1955
Special racing version of the 100; only 50 produced. Modified engine with 1.75” SU carburetors, disc brakes, and all-aluminum body.

Austin-Healey 100M

Production Dates: September 1955-July 1956
Le Mans version, available from the factory as a modified BN2. Only 640 produced from the factory.

Austin-Healey 100-6

Production numbers: 8,391
Production Dates: August 1956-June 1959
BN4 Open 2+2 seat, 6-cylinder engine, 2639cc, twin 1.75” SUs, 4-speed. Horizontal grille bars.
BN6 2-seater. Otherwise same as BN4.

Austin-Healey 3000 MKI

Production numbers: 13,650
Production Dates: July 1959-April 1961
BN7 Open 2-seater, 6-cylinder engine, 2912cc, twin 1.75” SUs, front disc brakes. Horizontal grille bars.
BT7 2+2 seat. Otherwise same as BN7..

Austin-Healey 3000 MKII

Production numbers (Tricarb): 5,451
Production numbers (BJ7): 6,113
Production Dates: May 1961-March 1962
BN7 Open 2-seater; 6-cylinder engine, 2912cc. Triple 1.5” SUs. Restyled grille with vertical bars.
BT7 Open 2+2 seat, same as BN7.
BJ7 2+2 seat with roll up windows, wrap around windshield and convertible top. 6-cylinder, 2912cc, twin 1.5” SUs.

Austin-Healey 3000 MKIII

Production numbers: 17,712
Production Dates: March 1962-December 1967
BJ8 Same as BJ7 except: restyled interior with wood dash, revised exhaust system and twin 2” SUs.

The 3000 sports convertible Mark III was announced in February 1964 with power increased from 136 bhp to 150 bhp by a new higher lift camshaft. SU HD8 carburetors replaced HS6 units increasing the choke size from 1.75 to 2 inches, or total area 6.3 sq. inches, increasing by 30.6%. Power-assisted braking became standard instead of optional. The new car's fascia displayed its speedometer and tachometer directly in front of the driver. Upholstery was now in Ambla vinyl

In May 1964 the Phase II version of the Mark III was released, which gained ground clearance through a modified rear chassis. In March 1965 the car received separate indicator lights.  The Mark III BJ8 remained in production until the end of 1967 when manufacture of the Austin-Healey 3000 ceased.