Austin-Healey Austin-Healey 100 / 3000 Engines by Year

The big Healeys used a 2.7 four, then BMC's C-series six.

Pick a year to see every engine offered that model year, with its code, rated horsepower and the trims it came in. Each engine links to its full specs.

Jump to a year

100 (BN1/BN2) (1953–1956): 1953 · 1954 · 1955 · 1956

100-Six (BN4/BN6) (1957–1959): 1957 · 1958 · 1959

3000 Mk I (BN7/BT7) (1959–1961): 1959 · 1960 · 1961

3000 Mk II (BN7/BT7/BJ7) (1961–1963): 1961 · 1962 · 1963

3000 Mk III (BJ8) (1964–1967): 1964 · 1965 · 1966 · 1967

100 (BN1/BN2) (1953–1956)

1953 Austin-Healey 100 / 3000 engines

Engine	Rated	Offered in
162 inline-four 1B	—	100 BN1 (1953-55), 100 BN2 (1955-56)

1954 Austin-Healey 100 / 3000 engines

Engine	Rated	Offered in
162 inline-four 1B	—	100 BN1 (1953-55), 100 BN2 (1955-56)

1955 Austin-Healey 100 / 3000 engines

Engine	Rated	Offered in
162 inline-four 1B	—	100 BN1 (1953-55), 100 BN2 (1955-56)

1956 Austin-Healey 100 / 3000 engines

Engine	Rated	Offered in
162 inline-four 1B	—	100 BN1 (1953-55), 100 BN2 (1955-56)

100-Six (BN4/BN6) (1957–1959)

1957 Austin-Healey 100 / 3000 engines

Engine	Rated	Offered in
161 inline-six C-Series 2.6	—	100-Six BN4 2+2, BN6 two-seater (1958-59)

1958 Austin-Healey 100 / 3000 engines

Engine	Rated	Offered in
161 inline-six C-Series 2.6	—	100-Six BN4 2+2, BN6 two-seater (1958-59)

1959 Austin-Healey 100 / 3000 engines

Engine	Rated	Offered in
161 inline-six C-Series 2.6	—	100-Six BN4 2+2, BN6 two-seater (1958-59)
178 inline-six 29D	124 hp gross	BN7 two-seater, BT7 2+2

3000 Mk I (BN7/BT7) (1959–1961)

1959 Austin-Healey 100 / 3000 engines

Engine	Rated	Offered in
161 inline-six C-Series 2.6	—	100-Six BN4 2+2, BN6 two-seater (1958-59)
178 inline-six 29D	124 hp gross	BN7 two-seater, BT7 2+2

1960 Austin-Healey 100 / 3000 engines

Engine	Rated	Offered in
178 inline-six 29D	124 hp gross	BN7 two-seater, BT7 2+2

1961 Austin-Healey 100 / 3000 engines

Engine	Rated	Offered in
178 inline-six 29E / 29F	—	BN7/BT7 triple SU (1961-62), BJ7 convertible twin SU (1962-63)
178 inline-six 29D	124 hp gross	BN7 two-seater, BT7 2+2

3000 Mk II (BN7/BT7/BJ7) (1961–1963)

1961 Austin-Healey 100 / 3000 engines

Engine	Rated	Offered in
178 inline-six 29E / 29F	—	BN7/BT7 triple SU (1961-62), BJ7 convertible twin SU (1962-63)
178 inline-six 29D	124 hp gross	BN7 two-seater, BT7 2+2

1962 Austin-Healey 100 / 3000 engines

Engine	Rated	Offered in
178 inline-six 29E / 29F	—	BN7/BT7 triple SU (1961-62), BJ7 convertible twin SU (1962-63)

1963 Austin-Healey 100 / 3000 engines

Engine	Rated	Offered in
178 inline-six 29E / 29F	—	BN7/BT7 triple SU (1961-62), BJ7 convertible twin SU (1962-63)

3000 Mk III (BJ8) (1964–1967)

1964 Austin-Healey 100 / 3000 engines

Engine	Rated	Offered in
178 inline-six 29K	150 hp gross	BJ8 convertible

1965 Austin-Healey 100 / 3000 engines

Engine	Rated	Offered in
178 inline-six 29K	150 hp gross	BJ8 convertible

1966 Austin-Healey 100 / 3000 engines

Engine	Rated	Offered in
178 inline-six 29K	150 hp gross	BJ8 convertible

1967 Austin-Healey 100 / 3000 engines

Engine	Rated	Offered in
178 inline-six 29K	150 hp gross	BJ8 convertible

Working on one of these engines?

• Engine displacement from bore and stroke
• Static and dynamic compression ratio
• Which camshaft for your build
• What size carburetor
• Horsepower to torque at any RPM
• Torque converter stall speed

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