* Labor costs: This varies widely by location (rural vs. urban, etc.) and the shop's hourly rate. Expect to pay anywhere from $50 to $150+ per hour. The job itself is quite labor-intensive.
* Parts costs: This includes the head gasket itself, head bolts (often recommended to replace), and potentially other related parts like coolant, oil, and possibly even a new thermostat. The quality of parts (OEM vs. aftermarket) will also affect the cost.
* Extent of damage: A simple head gasket replacement is less expensive than one that also requires machining the cylinder heads (to ensure a flat surface for the new gasket), valve job, or other repairs necessitated by overheating damage from the blown gasket. If the engine block is warped, that's a much more costly repair or even engine replacement.
Considering these variables, a reasonable estimate would range from $1,000 to $3,000 or more. The lower end of that range is optimistic and assumes minimal damage and a relatively low labor rate. The higher end accounts for potential additional repairs and higher labor costs.
To get an accurate estimate:
* Get multiple quotes: Call several reputable mechanics or auto repair shops in your area and describe the problem. Be sure they understand it's a 4.7L engine.
* Ask about the parts they'll use: Inquire about the brand of head gasket and whether they plan to replace the head bolts.
* Ask about the process: Find out if they'll be checking for other damage, like warped heads or block. A thorough inspection is crucial.
Ignoring a blown head gasket will almost certainly lead to more extensive and costly damage down the line. Get it checked and repaired as soon as possible.