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Tight pistons in chromed cylinders

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Well-Known Member
May 23, 2012
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My mechanic and I are in the process of installing (3) cylinders that were Nu-chromed when overhaulled, the ring gaps all meet the Continental spec, but the pistons feel extremely tight in the cylinders (compared to "standard"). For folks with experience with chrome cylinders, does this sound normal? Since the Nu-Chrome has a different surface roughness than a standard cylinder (slightly rough by design) intuitively it makes sense that the greater Ra would cause more interference, but I wanted to get others experience. Since I've had a saga of engine issues anything that seems out of the ordinary makes me skittish.

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