Quote:
Originally Posted by Obioban
The S65 short block (no heads/cams/vanos/etc) is lighter than the S54 short block (which was the basis of BMW's misleading marketing claims), but the S54 long block (complete engine) is lighter than the S65 long block.
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Thanks. That does challenge a lot of what I've read online which must be based on BMW marketing. I guess the only way to know is to weigh it and I found this article that supports what you've written in the comments. Makes me question what part(s) of an engine count when weighing it and what automakers are being consistent in how they report this
Now I'm not so sure I'd want one in my Z4 M has a dream build after all
P.S. guess linking to other forums is frowned upon. Google the URL path (A proper M3 engine swap) and you'll find it.
https://www.***********.com/content.php?9516-A-proper-M3-engine-swap-Brintech-Customs-sticks-an-S85-V10-into-an-E46-M3&utm_source=dlvr.it&utm_medium=facebook