If you are concerned about Cylinder wall thickness find a shop that can sonic test it for you. Should be less than $100. It will set your mind at ease and possably save you a LOT of money if your block turns out to be too thin to use. I would like to see .125 as a minimum thickness although I have seen quite a few 305 chevy blocks live at .090 after boring. But HEY,,, that's just ME!! Bruce Hevner _______________________________________________ AMC-List mailing list AMC-List@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list or go to http://www.amc-list.com