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4 A set of high-temperature-coated, forged aluminum Diamond pistons pinned to 6.80-inch-long Eagle H-beam rods (also coated) rounds out the rotating assembly. A ceramic coating is used on the heads of the pistons, giving them a unique gold color. The ceramic coating adds about $25 to the cost of each piston. Friction-reducing Teflon is used on the skirts, which adds a few more bucks to the bottom line. View Related Article
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