Engine & Internal Chat about beefing up your engine's insides here.

milling D15B7 head

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Old Mar 31, 2010 | 12:21 PM
  #1  
jacman747's Avatar
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Joined: Feb 2010
Posts: 21
Default milling D15B7 head

Hi all, i'm wondering how much I can safely mill off of a stock D15B7 head before having to do any valve relief work or anything.
Thanks!
 
Old Mar 31, 2010 | 01:06 PM
  #2  
94civichatchback's Avatar
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Joined: Dec 2007
Posts: 4,681
From: whitwell,Tn 37397
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The height for a new untouched head is 3.540 inches.
The service limit height for a shaved head is 3.530 inches.

The service limit on the head in the manual doesn't allow much cut because the stock cam gear is not adjustable. If you have an adjustable cam gear, then you can shave a bit more to allow valve clearence.
 

Last edited by 94civichatchback; Mar 31, 2010 at 01:11 PM.
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