Cleaned up heads...
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Cargo Master
Joined: May 2003
Posts: 2,561
Likes: 1
From: Earth
Cleaned up heads...
I hear of guys decking their heads to boost the compression ratio in their engine. However, I've been wondering if you just took your heads in to a machine shop and they just checked them out and cleaned them up, typically, how much is taken off? Nothing special, other than you're just doing a complete engine rebuild. I'm sure it depends on the shape the heads are in, but I was wondering, in general, if anyone knows how much that would be 
Posting Legend
Joined: Sep 2001
Posts: 30,255
Likes: 37
Normally it is 0.004-0.010". The block is generally surfaced the same amount.
The maximum head cutting is limited to 0.060" which really does not raise the compression that much. It is generally not worth the effort.
The maximum head cutting is limited to 0.060" which really does not raise the compression that much. It is generally not worth the effort.
