Why do people fill engine blocks with concrete?

Pouring concrete into your engine block might sound like the kind of thing that can ruin your car, but there's actually a ...
Oregonian

Old machinery replicates antique-style concrete blocks

Justin Grow is quick to haul out the old chestnut that Rome wasn't built in a day -- and neither was the concrete wall in front of his home. The wall wasn't even built in a summer -- as he initially ...