I think until you treat it.
Head gaskets are supposed to last the life of the engine. There is no "care" specific to head gaskets.
it can last for at least ten seconds
300,000,000,000 seconds
Not very long as it is only an emergency repair. The only fix for a blown head gasket is to replace it.
im not not shure if you mean how long do cockroaches live without a head, but if so i read they can last about week.
It should probably last about a couple months.
Normally it will last the life of the engine. However if the engine overheats the gasket can be ruined immediately.
It lasted for about a hour. It was fought on 23 September 1779.
If the head(s) were checked and had no cracks and the coolant never mixed with the motor oil it could last for many miles depending on how many miles allready on the engine.
well up to 3 hors or more you big dummy use your head for once
There is no way of saying for sure. As long as the engine never overheats and you change the coolant every 50,000 miles it should last the life of the engine.
If a head gasket is leaking, it has already failed and needs to be replaced and if you keep driving this vehicle you will bey buying a new engine.