273 piston ring nightmare!

toolmanmike said

I don't know what's going on. Stock 273 bore is 3.625. 3.660 is .035 over. Pistons are marked .060?
A +.060 should be 3.685

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Picture#8 where the dial caliper is at the top of the piston is what I was referring to.Measure them at the top of the skirt just below the oil ring groove and see what you get.