You need to remove the cylinder head from the block and use a straight edge and feeler gauge to measure the clearances (in multiple locations which should be performed by an experienced professional) on both the cylinder head and the engine block's mating surfaces. If you can bring the engine block and cylinder head (with clean mating surfaces) to an automotive machine shop, they MAY perform the measurements at no cost. Compare to factory spec.
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Monday, August 1st, 2011 AT 5:28 AM