Whats the highest mileage ///M engine you all have seen without rebuild?
Parts at Grayson BMW
221k
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Nik
91' M5 3.9L Stroker
92' M5 3.8L
95' 540i6 Supercharged
95' 540i6 4.7 Stroker
95' 550i6 M70 Conversion
There's a guy on m5board with over 400k kilometers and counting. However I would consider that an extreme case and it was probably extremely well maintained and babied.
1987 E30 cabrio | Bumper swap | H&R Sport | Koni Yellow | Eibach Sways | BavAuto strut bar | Cardinal seats | MTech2 wheel | Armrest | Smoked Hella Smileys | 5k HID | Stromung | RS003
2000 E39 M5 | Stoptech brakes | Refinished OEM wheels w/10mm spacers | Powerchips Gold 91 | Timmay Tips/muffler delete | Functional brake ducts | DICE MB1500 Slimm diffuser | Cubic black trim w/alcantara boots
Over the years I've seen a 210k S14, 290k S38b35 and 240k S38b36. All had never had the top end off. IIRC the S14 owner changed out bottom end bearings on a preventative basis around 150k simply because he flogs it all the time.
Stout motors as long as they get run hard and often. Letting them sit is not good for them.
I've got almost 163 on mine.
PO did have some work done on the top end, but hoping to make it to at least 200-215k before I have to break out the checkbook.
1991 M5
1986 944 (sold)
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