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Can anyone provide the tolerance for decking a 2012 1.4 turbo cylinder head? Deck is warped, .010 at center cross, .008 at the 1/2 and 3/4 cross. Anything solid from GM would be awesome. Head is at machine shop right now.
 

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Can anyone provide the tolerance for decking a 2012 1.4 turbo cylinder head? Deck is warped, .010 at center cross, .008 at the 1/2 and 3/4 cross. Anything solid from GM would be awesome. Head is at machine shop right now.
as far as I'm aware... it has no tolerance.
 

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Max warpage across short side is .00118"(long side is .00197")

If it's out of spec (it is....) GM says it's trash. There's no machining tolerances, none is allowed.
 

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2015 Chevrolet Cruze LT 1.4L Turbo
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Max warpage across short side is .00118"(long side is .00197")

If it's out of spec (it is....) GM says it's trash. There's no machining tolerances, none is allowed.
That's good to know for future reference.
 
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