CYLINDER REBORING/ COATING

[Maj]

The bores are lined with a ceramic type of compound over the aluminium cylinder,the lining is only about .002"-.005" thick and the aluminium underneath is not durable enough for long term use on its own
i have heard of some just using the aluminium, but its only in race use and the cyls are a disposable item with a set life in this case.

Can you sleeve a bored block as per the GS/EFE/GPZ blocks or will this interfere with the dome dimensions in the head.?
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I have heard of it been done.wouldn't leave much between cyls... and why when you can bore and recoat a cyl for probably similar price??