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Mini  and Metro engine number prefixes, suitable for unleaded fuel

Mini  and Metro engine number prefixes, suitable for unleaded fuel

Source: Mini Spares Centre mechanical parts catalogue, Haynes workshop manual  - Metro '80-'90

Metro  And Mini Engines

Mini  1000 A+, '89 on

Mini 1275 A+, '90 on

Flat  top  pistons with press fit gudgeon pins
99HD81
99HE20/21
99HF15/16
99HG30/32/33
LBB10089
Dished pistons with press fit gudgeon pins
99HE22
99HG31
LBB10175

12A  2A : carburettor
12A 2B : carburettor and catalyst
12A 2D : TBI single point fuel injection, 9.4 CR
12A 2E : TBI single point fuel injection, 10.4 CR
Following suffix:
G01 : 10.1 CR, 3.1 diff, catalyst, no oil cooler
G03 : 9.4 CR, 3.1 diff, catalyst, may '92 on
G04 : 9.4 CR, 2.76 diff, catalyst, France only
G05 : 9.4 CR, automatic, catalyst
F53 : 10.1 CR, 3.1 diff, catalyst, with oil cooler
F75 : 9.4 CR, 3.1 diff, TBI, non open loop catalyst
F76 : 9.4 CR, automatic, non open loop catalyst
F77 : 10.1 CR, 3.2 diff, TBI Cooper, non open loop catalyst

Metro 1000, '89 on

Metro 1275, '89 on

99HE38/39, 8.3 CR
99HE35/67/68/69/70/76/94, 9.6 CR

12HE41/42,  8.0 CR
12HE24/25/48/71/72/73, 9.1 CR
12HF, 10.0 CR