Head gaskets do not warp, they blow. Heads warp. If you see white smoke from the exhaust, coolant in the oil, which will make it look milky, a white foamy substance on the underside of the oil fill cap, & loss of coolant with no apparent leak, you more than likely have a blown head gasket, cracked or warped head, or both. The only way to find out is to remove the head. But before you do that have a compression test run.
if you had it heat high enough it very likely worped your heads and or damaged the head gasket
a cylinder head gasket is called in French "un joint de culasse"
A compression test will tell you if a head gasket is blown on ANY engine. Also, white smoke tells you that your burning anti-freeze, which means a head gasket is blown.
To tell if the head is cracked, you have to remove it from the car, so you will replace the head gasket, anyway. Take the head to a machine shop and have it magnafluxed to see if it's cracked.
No spark plugs have nothing to do with water in your cylinders. I would guess a bad head gasket, worped head or cracked in the water jacket might be a closer bet. Hope this helps.
Just look at your engine oil and you can tell, if it looks milky there is water getting into the oil and that's the sign of a blown intake gasket or head gasket.
A compression test will verify if the head gasket if blown or not, the majority of the time.
You can tell if you're head gasket has been compromise by looking into the coolant reservoir, with the engine running. When the head gasket is compromised there will be air bubbles in the coolant reservoir.
Take it to a mechanic nobody can tell you how to replace a head gasket over answers.com it requires someone who knows how to rebuild engines when a head gasket blows it requires the engine to be disassembled and rebuilt.
I hate to tell you this but I just paid $3,500 at the Nissan dealer for head gasket replacment.
A good way to tell is change your oil. When a head gasket blows you will have water in your oil or oil in your water system. Check these 2 areas for water and oil.
The head will need to be inspected at a machine shop. They can tell you if it is warped or cracked.