Quote:
Originally Posted by whipplem104
As far as the bore on each goes the later m104 is I think about 1mm bigger than the earlier motors. The stroke is the same. In fact I have stroked a 2.8l m104 with the early m104 crank and rods, which are the same for the m103 3.0l also.
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According to carfolio.com,
1993 320CE:
Bore × stroke 89.90 mm × 84.00 mm
1989 300CE-24:
Bore × stroke 88.50 mm × 80.25 mm
1993 280E:
Bore × stroke 89.90 mm × 73.50 mm