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      09-27-2013, 07:40 AM   #74
Yellow Snow
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United Kingdom

Drives: 335d Coupe. Stock no more!
Join Date: Mar 2008
Location: Newcastle

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Originally Posted by Boss330 View Post
The great thing with a large bore/short stroke engine is that it's possible for BMW M and the tuners to develop "stroker kits".

With a 85mm bore this engine gets 3219cc
With a 88mm bore this engine gets 3329cc
With a 89,6mm bore this engine gets 3390cc
Don't you mean stroke?

Originally Posted by Boss330 View Post
See my previous post re bore spacing.

Where do we have the 91mm bore spacing info from?
Is it a verified measurement or just what everyone believes?
It's definitely 91mm spacing. I've measured it myself.