How Cities Grow: Dispersion, not Densification. by Wendell Cox 10/15/2011. Analysts occasionally note that urban areas (cities) are becoming larger and denser. This is only half right.
The first billing round for the aortic valve replacement was about $75,000 on the statements. The two insurers finally settled between themselves for about $17,000 total cost, including a 5-day hospital stay.
The purpose of a valve job is to resurface the poppet valves and their seats, which control the flow of air and fuel to move the pistons. On newer engines (V6 or V8), a valve job can cost up to $125 per valve that needs repairing, with the cost increasing for engines with over 12 valves.