Vehiclenomics

Head Gasket Repair Cost: Why It’s Expensive

Educational explainer. U.S.-focused; prices vary by state/region and by vehicle.

Head gasket repairs are expensive mostly because of labor and machining. The engine must be disassembled, surfaces cleaned, and often the head must be checked for warping or cracks.

Red flag: Overheating can turn a gasket issue into a full engine replacement—act early.

What’s involved

  • Disassembly and teardown
  • Machine shop work (often)
  • New gaskets, bolts, fluids
  • Testing for damage

Why it costs so much

Labor hours are high and the risk of discovering deeper damage is real.

Repair vs replace decision

Compare the total job cost to how long you realistically plan to keep the vehicle and how reliable it has been otherwise.

FAQ

Can I keep driving with a bad head gasket?

It’s risky. Coolant loss and overheating can cause rapid damage.

Is a sealant a real fix?

Usually not. It may delay, but can create other problems.