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      09-26-2013, 07:37 PM   #65
mkoesel
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Drives: No BMW for now
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Quote:
Originally Posted by Boss330 View Post
See my previous post re bore spacing. http://f80.bimmerpost.com/forums/sho...3&postcount=52

Where do we have the 91mm bore spacing info from?
Is it a verified measurement or just what everyone believes?
I know this number has shown up in my research on BMW engines in the past. I have also seen it referred to in discussions that included engine builders as participants. Finally, it has been well accepted in any threads discussing maximum displacement for the BMW "junior six".

Did you try an internet search? I will spend a few minutes and see what comes up. I am thinking of two particular S54 discussions that went into gross details including deck height, rod length, compression height, etc.