How much would it cost to replace a collapsed valve in cylinder of 2001 S80?

Replacing a collapsed valve in the cylinder of a 2001 Volvo S80 can cost between $1,000 and $2,500, depending on labor rates and whether any additional damage has occurred. The cost includes parts, which can range from $100 to $300 for the valve itself, and labor, which can take several hours. It's advisable to get a detailed estimate from a mechanic for a more accurate figure.