Re: Results of milling iron heads.
I don't trust the clay method any more. I use the aluminum ball method. Lwss messy and more accurate. Take a small square od aluminum, roll it up into a dmall loose ball, place a dab of grease on the spot to check and you'll get a very accurate measurement. I couldnt read your numbers. looks like .125??. Sounds like Merc pistons in your engines
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