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      04-08-2013, 09:00 AM   #4
Its_lobelt
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Drives: 2015 M4
Join Date: Apr 2005
Location: Los Angeles

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Quote:
Originally Posted by RedNeck_D View Post
I believe the 4.7L stroker kit is the biggest.
Quote:
Originally Posted by Soorena View Post
Bore wise, there is not much to do. The stock cylinder wall thickness is just 6mm, so you can only bore-out the engine by 1-2mm.
As for the stroke iirc it can goes up to 85mm. I heard that from a BMW mechanic (I don't recall if it's because of deck height limit or crank room limit). So 4.7 would be the biggest displacement.
Thank you guys. Thats what I thought about the cylinder wall thickness as well. It would be awesome to have a big NA hp car.
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