1996 Honda Civic part toorder for head gasket repair

If you have not done this before, you are in for a real mess. This requires doing the timing belt, and while it's apart, most mechanics will do the water pump as well. You need a gasket set for timing, and head gasket set, an new timing belt, send the head to a machine shop to be checked, and planed if needed.
This is not a job for an inexperienced person. Get a good shop manual, and read about it before you start the job, if you don't, you'll wish you had!

You would need to check the engine block face too as this aluminium alloy block tends to sink at the ridge between the 2nd and 3rd cylinder if the overheating problem had been happening for quite some time.