True but if that engine is say a 318 LA, that was made up till the 90s, there's no poin, now a 340 or any big block, yeah I could see that being a good idea
You've missed the point.......old cars, trucks, are going to the shredder as fast as they can be loaded into trailers and hauled away. I live about 5-6 miles away from the largest privately owned shredder on the east coast....there is an endless stream of trucks hauling scrap to it. Who cares if something was made for 30 years......if a shredder goes 24/7 with the only time out to change hammers, doesn't take long to eat up 30 years of production.
Sleeveing a block like the one in the article, if that is all you can find, is what you will have to do. Don't dismiss that as a viable option.