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Old 04-22-2013, 11:54 PM
0trbo4myCHEVUICK 0trbo4myCHEVUICK is offline
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Quote:
Originally Posted by techinspector1 View Post
I seem to remember reading in an engineering mag several years ago that the crown thickness of most any piston will be about 7% of the bore. So, on a 4" bore piston, the crown should be about 0.280" (over a quarter of an inch).

With my thumb and pointer it feels like maybe 1/8" here. Ill have to measure it..
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