M30B25 6 Cylinder 2.5L Built 1968 to 1967

The BMW M30 (early models are sometimes referred to as "M06") is a straight-6 SOHC piston engine which was used over a 28-year lifespan over many BMW models. Ward's have rated the M30 as one of the "Top Engines of the 20th Century".

It has been given the nicknames of 'Big Six' and 'Senior Six', following the introduction of the smaller BMW M20 straight-six in the late 1970s.


2.1 2.5 litre

2.2 2.8 litre

2.3 3.0 litre

2.4 M30B32

2.5 M30B34

2.6 M30B35

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