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TR2/3/3A Getting a cylinder head skimmed for flatness....

karls59tr

Obi Wan
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How do you determine how much needs to be taken off if you do not know how many times it has been machined off before?
 
For a stock rebuild, take off only what is required to true the head and clean up the gasket surface. 5-10 thousandths is usually plenty. The head shop will do that automatically, unless you aske to take more. Taking more than required is a "hot rod" technique to raise compression for performance. You can measure to the intake inlet to determine how much has been removed previously...Id o not remember the numbers, but someone will, or you can search the threads as it has come up many times.
 
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