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Engine Types

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Standard Mini Engines

Model

Engine Type

Bore (mm)

Stroke (mm)

Capacity (cc)

Compression Ratio

BHP

Mini 850
8MB
62.94
68.26
848
8.3:1
35
Mini 850 Auto
8AH
62.94
68.26
848
9.0:1
37
Mini 1000 (non Cooper) to 1989
9WR or 99H
64.588
76.2
998
8.3:1
36
Mini 1000, 1989 on (with catalyst)
99HD81
64.588
76.2
998
9.6:1
45
Mini City, City E and Mayfair
A+
64.588
76.20
998
9.6:1
Mini 1.3i, 1991 on
12A2DF75
70.61
81.28
1275
9.4:1
50
Mini 1.3i, 1992 on Auto
12A2DF76
70.61
81.28
1275
9.4:1
50
Cooper 997, 1961 to 1964
9F
62.43
81.28
997
HC: 9.0:1
LC: 8.3:1
55
Cooper 998, 1964 to 1969
9FA
64.588
76.2
998
HC: 9.0:1
LC: 7.8:1
HC: 53.8
LC: 50.2
Cooper 'S' 970, 1963 to 1971
9F
70.6
61.91
970
10.0:1
64
Cooper 'S' 1071, 1963 to 1971
10F
70.6
68.26
1071
9.0:1
67.5
Cooper 'S' 1275, 1963 to 1971
12F
70.6
81.33
1275
8.75:1
76.1
Cooper (non injection) 1990 to 1992
12A2AF53
70.61
81.28
1275
10.0:1
61
Cooper (with injection) 1991 on
12A2EF77
70.61
81.28
1275
10.0:1
63
Mini 1275GT, 1969 to 1977
12H
70.61
81.28
1274.86
HC: 8.8:1
LC: 8.3:1
57
Mini Clubman 1100
10H
64.588
83.73
1098
8.5:1
44.6

Metro Engine Numbers

Engine Number

CR

Year

Comments

99HE22
(mini)

8.3 : 1

1989- on 91RON, leaded or unleaded.

99HD81
(mini)

9.6 : 1

1988- on 95RON, leaded or unleaded.

99HE20
(mini)

9.6 : 1

1989- onwards High compression 95RON, leaded or unleaded.

99HB96P
99HB97P
99HB98P
99HB99P

8.3 : 1

1986- onwards 1.0 Saloon and Van.

99HB87P
99HB88P
99HB89P
99HB94P
99HB95P

9.6 : 1

1986 1.0 Saloon and Van
99HB90P
99HB91P
99HB92P
99HB93P

10.3 : 1

1986 1.0 Saloon and Van
99HD27
99HD29
99HD30
99HD31
10.3 : 1

1989

1.0 Saloon and Van

99HD32
99HD33
8.3 : 1 1989

1.0 Saloon and Van

99HE35
99HE67
99HE68
99HE69
99HE70
99HE76
99HE94
9.6 : 1 1989 1.0 Saloon and Van
95 RON unleaded.
99HE38
99HE39
8.3 : 1 1989 1.0 Saloon and Van 95RON unleaded
12HC17AA 8.0 : 1 1986 1.3 Saloon
12HC18AA
12HC19AA
9.75 : 1 1986 1.3 van
12HC09AA
12HC10AA
9.75 : 1 1986 1.3 Van
12HD26AA 9.4 ; 1 1987/1988 MG Metro turbo
12A2EK71
(mini)
10.0 : 1
Single point injection with manual transmission, 95RON unleaded only.
12HB09AA
12HB22AA
12HB36AA
9.75 : 1 1985/1986 1300HLE
12HA73
12HA84AA
12HA37AA
8.0 : 1 1985/1986 Low compression.

12A2BG05
(mini)

9.4 : 1

1990- onwards 1.3 Mini with carburettor
automatic transmission

12A2DF76
(mini)

10.1 : 1

1991- onwards Single point injection with manual transmission, 95RON unleaded

12A2AG01
(mini)

9.4 : 1

1991 1.3 Mini with carburettor manual transmission.

12HC11
12HC14

10.5 : 1

Oct.1984- onwards MG Metro

12HD09AA 12HD10AA 12HD11AA 12HD12AA 12HD13AA 12HD21AA 12HD22AA

9.75 : 1 1987 / 1988 1.3 Saloon

12HD18AA 12HD19AA 12HD20AA

8.0 : 1 1987 / 1988 1.3 Van
12HD14AA
12HD15AA
9.75 : 1 1987/ 1988 1.3 Van
12HD18AA 8.0 ; 1 1989 1.3 saloon
12HD26 9.4 : 1 1989 MG Metro turbo
12HD09
12HD10
12HD11
12HD12
12HD13
12HD21
12HD22
9.75 : 1 1989 1.3 Saloon
12HD23 9.75 : 1 1989 1.3 Saloon, Vandenplas,
MG Metro
12HD17
12HD24
12HD25
10.5 : 1 1989 1275 Sport, MG Metro
with manual transmission
12HD19
12HD20
8.0 : 1 1989 1.3 Van
12HD14
12HD15
12HD16
9.75 : 1 1989 1.3 van
12HD41
12HD42
8.0 : 1 1989 1.3 Saloon with manual transmission
12HE48 9.4 : 1 1989 1.3 saloon
12HE24
12HE25
12HE48
12HE71
12HE72
12HE73
9.4 : 1 1989 1.3 Saloon with manual transmission
12A2EK72
(mini)
9.4 : 1 1996- onwards Multi point injection, 95RON unleaded only.
12A2LK70
(mini)
10.0 : 1 1996- onwards Multi point injection, 95RON unleaded only.
12HA83AA
12HA42AA
10.5 : 1 1985/1986 High compression
MG Metro
12A2BG03
(mini)

9.4 : 1

1990- onwards 1.3 Mini with carburettor,
manual transmission

12A2DF75
(mini)

9.4 : 1

1991- onwards Single point injection, manual transmission, 95RON unleaded only.
12A2EF77
(mini)
10.1 : 1 1991- onwards Single point injection, high compression., 95RON unleaded.
12H996 10.5 : 1 >0ct. 1984 MG Metro
12HF01
12HF02
10.5 : 1
MG Metro

 


  

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