I think the current last word in aluminum cylinders is a plating of
Nickle silicon-carbide called Nikasil. This provides the wear
resistance necessary without the complications of a steel liner in an
aluminum block. It apparently provides good service and the plating can
be renewed at overhaul. There are other, similar platings available.
Without a liner or the special plating aluminum is just too soft and
wears too easily to provide long service.
Jerry Liles
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