HG replacement on a Northstar is not a trivial job. The engine should be pulled. Re-tapping the head bolt holes MUST be done. At a typical dealer, it's a $3500-$5000 job, with I believe a 40-hour book.
If that is the Northstar engine, yes.
It may work as an emergency temporary repair but the only permanent repair is to replace the head gasket.
Sounds like a blown head gasket
A thermostat gasket is a gasket for a thermostat, a head gasket is a head gasket. The top part of the engine needs to be disassembled to repair the head gasket. You can find information on your specific car in your local library. You may even be able to access this online if the library has the databases available.
If that has the Northstar engine, there is many hours involved. The engine and trans must be dropped out from under the car along with the subframe.
cracked head, or leaking head gasket, or cracked block
Take it to a pro a lot of special tools and know how req. A lot of shops won't do this job.
1st, 30 ft lbs, 2nd 70 degrees, 3rd. 65 degrees, 4th 4 degrees
How does it cost to replace a head gasket for a 2000 Cadillac escalade
sounds like bad head or gasket do compression test on cylinders
If your a dealer? not much a few hundred due to the head gasket issues, to an average Joe 2000- ? depending all on mileage and vehicle condition check www.kbb.com -Rob
back of right head