tag:blogger.com,1999:blog-2693775542020483450.post4246859112445336764..comments2024-03-29T03:14:14.667-04:00Comments on Progress is fine, but it's gone on for too long.: Unlikely Survivor, Pontiac AstreMister Ghttp://www.blogger.com/profile/17663484841011868779noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-2693775542020483450.post-62213267382875369612022-06-28T00:42:00.322-04:002022-06-28T00:42:00.322-04:00Wrong. They didnt wear at all. and they werent coa...Wrong. They didnt wear at all. and they werent coated. The block was 17% silicon. The silicon was exposed after an etching process. Its 7 on a 1-110 hardness scale. The cylinders could get scored from an overheated engine however. vegavairbobhttps://www.blogger.com/profile/09018275229164166937noreply@blogger.com