Factory Designations for "Big Healey"  Models

BN1

100/4 1952-55 2 seater, 3 speed o/drive gearbox

BN2

100/4 1959-56 2 seater, 4 speed o/drive gearbox

AHS

100M 1954-56 2 seater

BN4

100/6 1956-1959, 2+2 seating

BN6

100/6 1958-1959, 2 seater

BN7

3000 Mk I 1959-61 & Mk II 1961-62, 2 seater

BT7

3000 Mk I 1959-61 & Mk II 1961-62, 2+2 seating

BJ7

3000 Mk II 1962-63, 2+2 seating

BJ8 Phase 1

3000 Mk III 1964, 2+2 seating

BJ8 Phase 2

3000 Mk III 1964-68, 2+2 seating