Plating is a surface repair, good for rare or hard to find blocks. If the thoughts are to make a cylinder wall harder the aerospace tech has a chrome plating for cylinders. The purpose of sleeving in this post is for making a larger bore possible, not a repair. I'm considering the possibility of a 96mm or more bore in a 22R block. At this stage in the life of the 22R engine the blocks are still semi-plentiful so repairing a block isn't necessary, unless of course you want to have a matching numbers resto.