Wet Cylinder Liners

[Duk]

This is 1 of those think out loud sought of questions. Do the cylinder liners for an aluminium block engine have to be made from cast iron (nodular iron I believe)?
Can other more readily available materials (mild steel and stainless steels) be used to make a wet sleeve cylinder liner, or are the wear characteristic the determining factor?
Anything else to consider? Thermal expansion? Oxidation/rusting?
OC would have to be the man for this 1

[andrew_mx83]

nickasil liners are apparently the way to go.

[thechuckster]

Also 'TK' on Performance Forums would be the dude to ask with regards to industry practice as he's a highly regaded hipo engine builder .. and he's in SA.