Thread: E39 540i low compression
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  #90  
Old 03-04-2011, 05:22 PM
bobdmac bobdmac is offline
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Mein Auto: 2001 540i/6, '90 BMW k75s
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Nice photo there. It clearly shows the additional 45 degree bevel of the back cut. The problem with it is that he comes one step closer to the seductive lure of porting and polishing the head, and who knows where that could lead?
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