Sorry, i thought the add said it had been decked by quite an amount. May be thinking about two different adds.
I have a 205 block thats been lined, i was advised that the heat transfer between the two materials can create problems. So i used a different block and oversized pistons.
On the other hand i've also been told that reylands Nikasil Liner Conversion is the ultimate thing to have.
Either way its Ideal now as i have a spare bottom end just in case