Here's a view of the skirts on the pistons. As discussed in the article, the piston to wall clearance was too large, so we coated the skirts with a high-pressure ceramic coating and block-sanded it to achieve the correct contact patch and clearance we desired. This coating also has a high coefficient of lubricity, so not only did it "save" our block and pistons, but it should help out by reducing friction a bit.
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