BMC A-Series engine
Encyclopedia
Austin Motor Company
The Austin Motor Company was a British manufacturer of automobiles. The company was founded in 1905 and merged in 1952 into the British Motor Corporation Ltd. The marque Austin was used until 1987...
's small straight-4
Straight-4
The inline-four engine or straight-four engine is an internal combustion engine with all four cylinders mounted in a straight line, or plane along the crankcase. The single bank of cylinders may be oriented in either a vertical or an inclined plane with all the pistons driving a common crankshaft....
automobile
Automobile
An automobile, autocar, motor car or car is a wheeled motor vehicle used for transporting passengers, which also carries its own engine or motor...
engine, the A-Series, is one of the most common in the world. Launched in 1951 with the Austin A30
Austin A30
The A30 was a compact car produced by Austin Motor Company in the 1950s. Introduced in 1951 as the "New Austin Seven", it was Austin's answer to the Morris Minor...
, production lasted until 2000 in the Mini
Mini
The Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
. It used a cast-iron block and cylinder head, and a steel crankshaft with 3 main bearings. The cylinder head for the overhead valve version of the Austin series A engine was designed by Harry Weslake
Weslake
Weslake Research and Development was founded by Harry Weslake, with premises in Rye, East Sussex, England. Weslake was a cylinder head specialist who had been instrumental in modifying the side valve standard engine used in the first SS sports car. He also worked on the larger SS engine: "The...
— a cylinder head specialist famed for his involvement in SS (Jaguar) engines and several F1
Formula One
Formula One, also known as Formula 1 or F1 and referred to officially as the FIA Formula One World Championship, is the highest class of single seater auto racing sanctioned by the Fédération Internationale de l'Automobile . The "formula" designation in the name refers to a set of rules with which...
title winning engines.
The A-Series design was licensed by Nissan of Japan, along with other Austin designs. That company quickly began modifying the A-Series, and it became the basis for many of the following Nissan engines.
Specifications
| Displacement | |Stroke | |Carburation | |@rpm | |@rpm | ||||
|---|---|---|---|---|---|---|---|---|
| 803 cc | 58 mm | 76.2 mm | 7.5:1 | one SU H2 sidedraft | 30 PS | 5000 | 46 lbft | 2700 |
| 848 cc | 62.9 mm | 68.26 mm | 8.3:1 | one SU HS2 sidedraft | 33 PS | 5500 | 44 lbft | 2900 |
| 948 cc | 62.9 mm | 76.2 mm | — | one SU HS2 sidedraft | 37 PS | 4750 | 50 lbft | 2500 |
| 970 cc | 70.6 mm | 61.91 mm | — | two SU HS2 sidedraft | 65 PS | 6500 | 55 lbft | 3500 |
| 997 cc | 62.43 mm | 81.28 mm | — | two SU HS2 sidedraft | 55 PS | 6000 | 54 lbft | 3600 |
| 998 cc | 64.58 mm | 76.2 mm | 8.3:1 | one SU HS2 sidedraft | 39 PS | 4750 | 52 lbft | 2700 |
| 1071 cc | 70.6 mm | 68.26 mm | 8.5:1 | two SU HS2 sidedraft | 70 PS | 6000 | 62 lbft | 4500 |
| 1098 cc | 64.58 mm | 83.72 mm | 8.5:1 | one SU HS2 sidedraft | 47 PS | 5200 | 60 lbft | 2450 |
| 1275 cc | 70.6 mm | 81.28 mm | 8.8:1 | one SU HS4 sidedraft | 57 PS | 5300 | 69 lbft | 3000 |
All engines had a cast iron head and block, and two valves per cylinder in an OHV configuration. Engines were available in Diesel in the BMC tractor.
Note: All A-series engines up until mid 1970 were painted in British Standard (381c) 223 Middle Bronze Green. : Source Austin Morris (BL) internal documents archives.This does not include overseas production models such as Australian manufacture.
803
The original A-Series engine displaced just 803 cm3 and was used in the A30Austin A30
The A30 was a compact car produced by Austin Motor Company in the 1950s. Introduced in 1951 as the "New Austin Seven", it was Austin's answer to the Morris Minor...
and Morris Minor
Morris Minor
The Morris Minor was a British economy car that debuted at the Earls Court Motor Show, London, on 20 September 1948. Designed under the leadership of Alec Issigonis, more than 1.3 million were manufactured between 1948 and 1971...
. It had an undersquare 58 mm (2.3 in) bore and 76.2 mm (3 in) stroke. This engine was produced from 1952-1956.
Applications:
- 1952-1956 Austin A30Austin A30The A30 was a compact car produced by Austin Motor Company in the 1950s. Introduced in 1951 as the "New Austin Seven", it was Austin's answer to the Morris Minor...
, 28 hp at 4400 rpm and 40 lb·ft (54 N·m) at 2200 rpm - 1952-1956 Morris Minor Series IIMorris MinorThe Morris Minor was a British economy car that debuted at the Earls Court Motor Show, London, on 20 September 1948. Designed under the leadership of Alec Issigonis, more than 1.3 million were manufactured between 1948 and 1971...
, 30 hp at 4800 rpm and 40 lb·ft at 2400 rpm
948
1956 saw a displacement increase, to 948 cm3. This was accomplished by boring the block out to 62.9 mm (2.5 in) while retaining the original 76.2 mm (3 in) stroke. It was produced through to 1964.Applications:
- 1956-1962 Austin A35Austin A35The A35 was a small car sold by the British Motor Corporation under the Austin marque in the 1950s.-Design:Introduced in 1956, it replaced the highly successful Austin A30...
, 34 hp at 4750 rpm and 50 lb·ft at 2000 rpm - 1956-1962 Morris Minor 1000Morris MinorThe Morris Minor was a British economy car that debuted at the Earls Court Motor Show, London, on 20 September 1948. Designed under the leadership of Alec Issigonis, more than 1.3 million were manufactured between 1948 and 1971...
, 37 hp at 4750 rpm and 50 lb·ft at 2500 rpm - 1958-1961 Austin A40 FarinaAustin A40 FarinaThe Austin A40 Farina was a compact car introduced by the British Motor Corporation in 1958, replacing the earlier A40 Devon.It combines many of the virtues of a saloon and estate car in one body. There is more headroom for the rear passengers because of the angular instead of curved lines of the...
, 34 hp at 4750 rpm and 50 lb·ft at 2000 rpm - 1958-1961 Austin-Healey SpriteAustin-Healey SpriteThe Austin-Healey Sprite is a small open sports car which was announced to the press in Monte Carlo by the British Motor Corporation on 20 May 1958, just before that year's Monaco Grand Prix. It was intended to be a low-cost model that "a chap could keep in his bike shed", yet be the successor to...
, 43 hp at 5200 rpm and 52 lb·ft at 3300 rpm - 1961-1962 Austin A40 Farina MkIIAustin A40 FarinaThe Austin A40 Farina was a compact car introduced by the British Motor Corporation in 1958, replacing the earlier A40 Devon.It combines many of the virtues of a saloon and estate car in one body. There is more headroom for the rear passengers because of the angular instead of curved lines of the...
, 37 hp at 5000 rpm and 50 lb·ft at 2500 rpm - 1961-1964 Austin-Healey Sprite MkIIAustin-Healey SpriteThe Austin-Healey Sprite is a small open sports car which was announced to the press in Monte Carlo by the British Motor Corporation on 20 May 1958, just before that year's Monaco Grand Prix. It was intended to be a low-cost model that "a chap could keep in his bike shed", yet be the successor to...
, 46 hp at 5500 rpm and 53 lb·ft at 3000 rpm - 1961-1964 MG MidgetMG MidgetThe MG Midget is a small two-seater sports car produced by the MG division of the British Motor Corporation from 1961 to 1979. It revived a famous name used on earlier models such as the MG M-type, MG D-type, MG J-type and MG T-type.-MG Midget MkI :...
, 46 hp at 5500 53 lb·ft at 3000 rpm
A diesel
Diesel engine
A diesel engine is an internal combustion engine that uses the heat of compression to initiate ignition to burn the fuel, which is injected into the combustion chamber...
version of the 948 cc A-Series engine (producing 16 hp @ 2,500 RPM and 38 lb·ft torque @ 1,750 RPM) was produced for the BMC Mini Tractor. It was developed with the help of Ricardo Consulting Engineers. This engine has dry liners. The block is almost identical to the petrol engine. the oil pump has been removed from the camshaft and is driven by an extension to what would have been the distributor drive. A petrol version of this modified engine was 'reverse-engineered' for use in the Mini Tractor whilst retaining parts commonality with the diesel variant, rather than using a standard petrol A-Series unit. The diesel A-Series was also sold as a marine engine under the BMC name alongside the diesel B-Series
BMC B-Series engine
The BMC B-series was a straight-4 internal combustion engine family, mostly used in motor cars, created by British company Austin Motor Company. The pre-cursor of the "B" series engine was a 1200 cc OHV engine which was used in the 1947 Austin A40 Devon. This A40 Devon engine was based on a...
engines.
848
The 62.9 mm (2.5 in) bore was retained for 1959s 848 cm3 MiniMini
The Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
version. This displacement was reached by dropping the stroke to 68.26 mm (2.7 in). This engine was produced through to 1980 for the Mini, when the 998 A-Plus version supplanted it.
Applications:
- 1959-1969 Austin SevenAustin SevenThere were four Austin Motor Company cars to use the Seven name:* A single cylinder car produced in 1909* The 1922-1939 Austin 7* The original Mini* The launch title of the Austin A30...
/Austin Mini/Morris Mini, 34 hp at 5500 rpm and 44 lb·ft at 2900 rpm - 1961-1962 Riley Elf/Wolseley HornetWolseley HornetWolseley Hornet was the name of two different British vehicles produce under the Wolseley Motor Company nameplate.* Wolseley Hornet , lightweight saloon car produced in the 1930s....
, 34 hp at 5500 rpm and 44 lb·ft at 2900 rpm - 1964-1968 Mini MokeMini MokeThe Mini Moke is a vehicle based on the Mini and designed for the British Motor Corporation by Sir Alec Issigonis. The name comes from "Mini"—the car with which the Moke shares many parts—and "Moke", which is an archaic dialect term for donkey...
, 34 hp at 5500 rpm and 44 lb·ft at 2900 rpm - 1969-1980 Mini 850/CityMiniThe Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
, 33 hp at 5300 rpm and 44 lb·ft at 2900 rpm
997
The one-off 997 cm3 version for the Mini CooperMini
The Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
used a smaller 62.43 mm (2.5 in) bore and longer 81.28 mm (3.2 in) stroke. It was produced from 1961-1964.
Applications:
- 1961-1964 Austin/Morris Mini CooperMiniThe Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
, 55 hp at 6000 rpm and 54 lb·ft at 3600 rpm
998
The MiniMini
The Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
also got a 998 cm3 version. This was similar to the 948 in that it had the same 76.2 mm (3 in) stroke but was bored out slightly to 64.58 mm (2.5 in). It was produced from 1962-1992.
Applications:
- 1962-1969 Riley Elf/Wolseley HornetWolseley HornetWolseley Hornet was the name of two different British vehicles produce under the Wolseley Motor Company nameplate.* Wolseley Hornet , lightweight saloon car produced in the 1930s....
, 38 hp at 5250 rpm and 52 lb·ft at 2700 rpm - 1966-1982 Mini MokeMini MokeThe Mini Moke is a vehicle based on the Mini and designed for the British Motor Corporation by Sir Alec Issigonis. The name comes from "Mini"—the car with which the Moke shares many parts—and "Moke", which is an archaic dialect term for donkey...
, Australian Mokes. - 1983-1993 Mini MokeMini MokeThe Mini Moke is a vehicle based on the Mini and designed for the British Motor Corporation by Sir Alec Issigonis. The name comes from "Mini"—the car with which the Moke shares many parts—and "Moke", which is an archaic dialect term for donkey...
, Portuguese Mokes. - 1964-1969 Austin/Morris Mini CooperMiniThe Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
, 55 hp at 5800 rpm and 57 lb·ft at 3000 rpm - 1967-1980 Austin/Morris MiniMiniThe Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
, 38 hp at 5250 rpm and 52 lb·ft at 2700 rpm - 1969-1975 Mini ClubmanMiniThe Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
, 38 hp at 5250 rpm and 52 lb·ft at 2700 rpm - 1969-1992 Mini Clubman (automatic)MiniThe Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
, 41 hp at 4850 rpm and 52 lb·ft at 2750 rpm
1098
The 1.1 L (1098 cm3) version was produced for the larger BMC saloons. It was a stroked (to 83.72 mm (3.3 in)) version of the 998 previously used in the Riley Elf and Wolseley HornetWolseley Hornet
Wolseley Hornet was the name of two different British vehicles produce under the Wolseley Motor Company nameplate.* Wolseley Hornet , lightweight saloon car produced in the 1930s....
. It was produced from 1962-1980.
Applications:
- 1962-1967 Austin A40 FarinaAustin A40 FarinaThe Austin A40 Farina was a compact car introduced by the British Motor Corporation in 1958, replacing the earlier A40 Devon.It combines many of the virtues of a saloon and estate car in one body. There is more headroom for the rear passengers because of the angular instead of curved lines of the...
, 48 hp at 5100 rpm and 60 lb·ft at 2500 rpm - 1962-1971 Morris 1100/Morris Minor 1000Morris MinorThe Morris Minor was a British economy car that debuted at the Earls Court Motor Show, London, on 20 September 1948. Designed under the leadership of Alec Issigonis, more than 1.3 million were manufactured between 1948 and 1971...
, 48 hp at 5100 rpm and 60 lb·ft at 2500 rpm - 1962-1968 MG 1100, 55 hp at 5500 rpm and 61 lb·ft at 2500 rpm
- 1962-1964 Austin-Healey Sprite MkIIAustin-Healey SpriteThe Austin-Healey Sprite is a small open sports car which was announced to the press in Monte Carlo by the British Motor Corporation on 20 May 1958, just before that year's Monaco Grand Prix. It was intended to be a low-cost model that "a chap could keep in his bike shed", yet be the successor to...
, 56 hp at 5500 rpm and 62 lb·ft at 3250 rpm - 1962-1964 MG MidgetMG MidgetThe MG Midget is a small two-seater sports car produced by the MG division of the British Motor Corporation from 1961 to 1979. It revived a famous name used on earlier models such as the MG M-type, MG D-type, MG J-type and MG T-type.-MG Midget MkI :...
, 56 hp at 5500 rpm and 62 lb·ft at 3250 rpm - 1963-1974 Austin 1100, 48 hp at 5100 rpm and 60 lb·ft at 2500 rpm
- 1963-1967 Vanden Plas Princess 1100, 55 hp at 5500 rpm and 61 lb·ft at 2500 rpm
- 1964-1966 Austin-Healey Sprite MkIIIAustin-Healey SpriteThe Austin-Healey Sprite is a small open sports car which was announced to the press in Monte Carlo by the British Motor Corporation on 20 May 1958, just before that year's Monaco Grand Prix. It was intended to be a low-cost model that "a chap could keep in his bike shed", yet be the successor to...
, 59 hp at 5750 rpm and 65 lb·ft at 3500 rpm - 1964-1966 MG Midget MkIIMG MidgetThe MG Midget is a small two-seater sports car produced by the MG division of the British Motor Corporation from 1961 to 1979. It revived a famous name used on earlier models such as the MG M-type, MG D-type, MG J-type and MG T-type.-MG Midget MkI :...
, 59 hp at 5750 rpm and 65 lb·ft at 3500 rpm - 1965-1968 Riley Kestrel/Wolseley 1100, 55 hp at 5500 rpm and 61 lb·ft at 2500 rpm
- 1973-1975 Austin AllegroAustin AllegroThe Austin Allegro is a small family car manufactured by British Leyland under the Austin name from 1973 until 1983. The same vehicle was built in Italy by Innocenti between 1974 and 1975 and sold as the Innocenti Regent...
, 49 hp at 5250 rpm and 60 lb·ft at 2450 rpm - 1975-1980 Austin AllegroAustin AllegroThe Austin Allegro is a small family car manufactured by British Leyland under the Austin name from 1973 until 1983. The same vehicle was built in Italy by Innocenti between 1974 and 1975 and sold as the Innocenti Regent...
, 45 hp at 5250 rpm and 55 lb·ft at 2900 rpm - 1968-1982 Mini MokeMini MokeThe Mini Moke is a vehicle based on the Mini and designed for the British Motor Corporation by Sir Alec Issigonis. The name comes from "Mini"—the car with which the Moke shares many parts—and "Moke", which is an archaic dialect term for donkey...
Australia only. - 1975-1980 Mini ClubmanMiniThe Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
, 45 hp at 5250 rpm and 56 lb·ft at 2700 rpm - 1976-1980 Mini 1100 SpecialMiniThe Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
, 45 hp at 5250 rpm and 56 lb·ft at 2700 rpm
1071
The 1071 cm3 version was another one-off, this time for the Mini Cooper SMini
The Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
. It used a new 70.6 mm (2.8 in) bore size and the 68.26 mm (2.7 in) stroke from the 848. It was only produced in 1963-1964. Paired with the even rarer 970 cc version, below, it became that rarest of things: an oversquare A-series engine.
Applications:
- 1963-1964 Austin/Morris Mini Cooper SMiniThe Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
, 70 hp at 6000 rpm and 62 lb·ft at 4500 rpm
970
The Mini Cooper SMini
The Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
next moved on to a 970 cm3 version. It had the same 70.6 mm (2.8 in) bore as the 1071 cm3 Cooper S but used a shorter 61.91 mm (2.4 in) stroke. It was produced from 1964-1967.
Applications:
- 1964-1967 Austin/Morris Mini Cooper SMiniThe Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
, 65 hp at 6500 rpm and 55 lb·ft at 3500 rpm
1275
The largest A-Series engine displaced 1.3 L (1275 cm3). It used the 70.6 mm (2.8 in) bore from the Mini Cooper SMini
The Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
versions but the 81.28 mm (3.2 in) stroke from the plain Mini Cooper. It was produced from 1964 until 1980, when it was replaced by an A-Plus version.
Applications:
- 1964-1971 Austin/Morris Mini Cooper SMiniThe Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
, 76 hp at 5800 rpm and 79 lb·ft at 3000 rpm - 1966-1970 Austin-Healey Sprite MkIVAustin-Healey SpriteThe Austin-Healey Sprite is a small open sports car which was announced to the press in Monte Carlo by the British Motor Corporation on 20 May 1958, just before that year's Monaco Grand Prix. It was intended to be a low-cost model that "a chap could keep in his bike shed", yet be the successor to...
, 65 hp at 6000 rpm and 72 lb·ft at 3000 rpm - 1966-1974 MG Midget MkIIIMG MidgetThe MG Midget is a small two-seater sports car produced by the MG division of the British Motor Corporation from 1961 to 1979. It revived a famous name used on earlier models such as the MG M-type, MG D-type, MG J-type and MG T-type.-MG Midget MkI :...
, 65 hp at 6000 rpm and 72 lb·ft at 3000 rpm - 1967-1968 MG 1300/Wolseley 1300, 58 hp at 5250 rpm and 69 lb·ft at 3000 rpm
- 1967-1968 Riley Kestrel 1300, 58 hp at 5250 rpm and 69 lb·ft at 3000 rpm
- 1967-1968 Vanden Plas Princess 1300, 58 hp at 5250 rpm and 69 lb·ft at 3000 rpm
- 1967-1973 Morris 1300, 58 hp at 5250 rpm and 69 lb·ft at 3000 rpm
- 1967-1974 Austin 1300, 58 hp at 5250 rpm and 69 lb·ft at 3000 rpm
- 1967 MG 1275/Riley 1275, 58 hp at 5250 rpm and 69 lb·ft at 3500 rpm
- 1967 Wolseley 1275, 58 hp at 5250 rpm and 69 lb·ft at 3500 rpm
- 1967 Vanden Plas Princess 1275, 58 hp at 5250 rpm and 69 lb·ft at 3500 rpm
- 1968-1969 Riley Kestrel 1300/Riley 1300, 70 hp at 6000 rpm and 77 lb·ft at 3000 rpm
- 1968-1971 Austin America (automatic), 60 hp at 5250 rpm and 69 lb·ft at 2500 rpm
- 1968-1973 Wolseley 1300 (manual), 65 hp at 5750 rpm and 71 lb·ft at 3000 rpm
- 1968-1973 MG 1300 MkII, 70 hp at 6000 rpm and 77 lb·ft at 3000 rpm
- 1968-1974 Vanden Plas Princess 1300 (manual), 65 hp at 5750 rpm and 71 lb·ft at 3000 rpm
- 1968 MG 1300/Riley Kestrel 1300, 65 hp at 5750 rpm and 71 lb·ft at 3000 rpm
- 1969-1971 Morris 1300GT, 70 hp at 6000 rpm and 74 lb·ft at 3250 rpm
- 1971-1982 Mini Moke CalifornianMini MokeThe Mini Moke is a vehicle based on the Mini and designed for the British Motor Corporation by Sir Alec Issigonis. The name comes from "Mini"—the car with which the Moke shares many parts—and "Moke", which is an archaic dialect term for donkey...
Australian only. - 1969-1974 Mini 1275GTMiniThe Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
, 59 hp at 5300 rpm and 65 lb·ft at 2550 rpm - 1969-1974 Austin 1300GT, 70 hp at 6000 rpm and 74 lb·ft at 3250 rpm
- 1971-1980 Morris MarinaMorris MarinaThe Morris Marina is a car which was manufactured by the Morris division of British Leyland in the UK throughout the 1970s, which was a period of great turbulence and difficulty for the British car industry. It was known in some markets as the Austin Marina, Leyland Marina, and Morris 1.7...
, 60 hp at 5250 rpm and 69 lb·ft at 2500 rpm - 1971 Austin Sprite, 65 hp at 6000 rpm and 72 lb·ft at 3000 rpm
- 1973-1980 Austin AllegroAustin AllegroThe Austin Allegro is a small family car manufactured by British Leyland under the Austin name from 1973 until 1983. The same vehicle was built in Italy by Innocenti between 1974 and 1975 and sold as the Innocenti Regent...
, 59 hp at 5300 rpm and 69 lb·ft at 3000 rpm - 1974-1980 Mini 1275GTMiniThe Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
, 54 hp at 5300 rpm and 65 lb·ft at 2550 rpm
A-Plus versions
British Leyland was keen to update the old A-Series design in the 1970s. However, attempts at replacement, including an aborted early-70s K-Series engine and an OHC version of the A-Series, ended in failure. The little A-Series just worked too well. So the "A-Plus" was born. By tweaking the engine, BL engineers were able to extract more power without affecting torque. Some engine components were also replaced with more-reliable designs.998 Plus
The A-Plus version of the 998 cm3 motor was produced from 1980-1992.Applications:
- 1980-1982 Mini 1000/City/HLMiniThe Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
, 39 hp at 4750 rpm and 52 lb·ft at 2000 rpm - 1980-1982 Austin AllegroAustin AllegroThe Austin Allegro is a small family car manufactured by British Leyland under the Austin name from 1973 until 1983. The same vehicle was built in Italy by Innocenti between 1974 and 1975 and sold as the Innocenti Regent...
, 44 hp at 5250 rpm and 52 lb·ft at 3000 rpm - 1980-1990 Austin Metro, 41 hp at 5400 rpm and 51 lb·ft at 2700 rpm
- 1982-1988 Mini HLE/City E/MayfairMiniThe Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
, 40 hp at 5000 rpm and 50 lb·ft at 2500 rpm - 1981-1986 Austin Metro HLE 46 bhp and 52 lb·ft
- 1988-1992 Mini City/MayfairMiniThe Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
, 42 hp at 5250 rpm and 58 lb·ft at 2600 rpm
1275 Plus
The big 1.3 L (1275 cm3) engine was also given the "A-Plus" treatment. This lasted from 1980–2000, making it the last of the A-Series line.Applications:
- 1980-1982 Austin AllegroAustin AllegroThe Austin Allegro is a small family car manufactured by British Leyland under the Austin name from 1973 until 1983. The same vehicle was built in Italy by Innocenti between 1974 and 1975 and sold as the Innocenti Regent...
, 62 hp at 5600 rpm and 72 lb·ft at 3200 rpm - 1980-1984 Morris ItalMorris ItalThe Morris Ital was a medium-sized saloon car built by British Leyland from 1980 until 1984.-Design and launch:The Ital was first launched on 1 July 1980. It took its name from Giorgetto Giugiaro's ItalDesign studio, who had been employed by BL to manage the re-engineering of Morris Marina, a car...
, 61 hp at 5300 rpm and 69 lb·ft at 2950 rpm - 1980-1990 Austin Metro, 63 hp at 5650 rpm and 72 lb·ft at 3100 rpm
- 1982-1989 MG Metro, 72 hp at 6000 rpm and 75 lb·ft at 4000 rpm
- 1983-1985 Austin Maestro HLEAustin MaestroThe Austin Maestro is a compact-sized 5-door hatchback car that was produced from 1983 to 1994, initially by the Austin Rover subsidiary of British Leyland , and from 1988 onwards by its successor, Rover Group. The car was produced at the former Morris plant in Cowley, Oxford. It was initially...
, 64 hp at 5500 rpm and 73 lb·ft at 3500 rpm - 1983-1993 Austin MaestroAustin MaestroThe Austin Maestro is a compact-sized 5-door hatchback car that was produced from 1983 to 1994, initially by the Austin Rover subsidiary of British Leyland , and from 1988 onwards by its successor, Rover Group. The car was produced at the former Morris plant in Cowley, Oxford. It was initially...
, 68 hp at 5800 rpm and 75 lb·ft at 3500 rpm - 1984-1989 Austin MontegoAustin MontegoThe Austin Montego is a British mid-size saloon car that was produced by the Austin Rover subsidiary of British Leyland , and its successors, from 1984 until 1994. The Montego was the replacement for the Morris Ital, to give British Leyland a modern competitor for the Ford Sierra and Vauxhall...
, 68 hp at 5600 rpm and 75 lb·ft at 3500 rpm - 1989-1990 MG Metro GTa, 72 hp at 6000 rpm and 75 lb·ft at 4000 rpm
- 1990-1991 Mini CooperMiniThe Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
, 61 hp at 5550 rpm and 61 lb·ft at 3000 rpm - 1990-1991 Mini Cooper SMiniThe Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
, 78 hp at 6000 rpm and 78 lb·ft at 3250 rpm - 1991-1996 Mini Cooper 1.3i/CabrioletMiniThe Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
, 63 hp at 5700 rpm and 70 lb·ft at 3900 rpm - 1991-1996 Mini Cooper S 1.3iMiniThe Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
, 77 hp at 5800 rpm and 80 lb·ft at 3000 rpm - 1992-1996 Mini Sprite/MayfairMiniThe Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
, 50 hp at 5000 rpm and 66 lb·ft at 2600 rpm
1275 Turbo
Turbo versions lasted from 1983-1990.Applications:
- 1983-1989 MG Metro Turbo, 94 hp at 6130 rpm and 85 lb·ft at 2650 rpm
- 1989-1990 Mini ERA TurboMiniThe Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
, 94 hp at 6130 rpm and 85 lb·ft at 3600 rpm
1275 TPi
A special "twin-port injection" version of the 1.3 L (1275 cm3) engine was developed by Rover engineer, Mike Theaker. It was the last A-Series variant, produced from 1997-2000.Applications
- 1997-2000 Mini Cooper 1.3i (TPi)MiniThe Mini is a small car that was made by the British Motor Corporation and its successors from 1959 until 2000. The original is considered a British icon of the 1960s, and its space-saving front-wheel-drive layout influenced a generation of car-makers...
, 63 hp at 5500 rpm and 70 lb·ft at 3000 rpm
JOHN COOPER GARAGES
During the 1990s Mini Cooper revival, John Cooper Garages offered a number of factory-approved "Cooper S" and "Cooper Si" upgrades to the standard Coopers. The conversions came with a full Rover warranty, and could initially be fitted by any franchised Rover dealer.
S pack (carb) 77 bhp - 1st Si pack (Spi) 77 bhp - 2nd Si pack (Spi) 82 bhp - 3rd Si pack (Spi) 86 bhp - 1997 Si pack (Tpi) 85 bhp @ 5500rpm - 1999 Si pack (Tpi) 90 bhp @ 6000rpm