When I had the heads off it looked like the pistons were stock. I left them as is. Engine runs good and doesn't smoke. I don't have much for tools. Took a feeler gauge and a straight edge to measure how far they were down in the hole when they were all the way up. 0.020 on one side, 0.025 on the other, snug.

Thanks for your time, John.


2010 Black Challenger SE <> 3.5 V6
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