A bad head gasket , a warped head usually from overheating , would
allow engine coolant into an engine cylinder
No. White smoke is a symptom of coolant entering the combustion chamber. Stop driving the car and have it looked at by a professional. Serious engine damage will occur if it is indeed coolant in the combustion chamber and you continue to run the engine.
It can be nothing more than condensation when you first start the engine. But it may be more serious. White smoke from the exhaust can be a sign that coolant is entering the combustion chamber. Normally this would indicate a blown head gasket, but on some vehicles where the coolant flows through the intake manifold, it can indicate a blown intake gasket. Bottom line is, that if, coolant is entering the combustion chamber, you must find out from where. Are you loosing coolant, even a small amount? If you indeed have coolant entering the combustion chamber it will cause engine damage.It can be nothing more than condensation when you first start the engine. But it may be more serious. White smoke from the exhaust can be a sign that coolant is entering the combustion chamber. Normally this would indicate a blown head gasket, but on some vehicles where the coolant flows through the intake manifold, it can indicate a blown intake gasket. Bottom line is, that if, coolant is entering the combustion chamber, you must find out from where. Are you loosing coolant, even a small amount? If you indeed have coolant entering the combustion chamber it will cause engine damage.
If you mean "hydro lock", that is when coolant enters the combustion chamber and prevents the engine from turning (water doesn't compress)
The head of an engine is cooled from passages in the block. When you blow a head gasket the coolant gets by the passages and into the combustion chamber. Sometimes the coolant doesn't go into the chamber but goes into the oil pan causing the engine oil to turn a milky brown color (looks like a chocolate milkshake).
Coolant will enter the combustion chamber and get into the oil pan. This will cause severe wear of internal engine components very quickly.
Sounds like head gasket is leaking allowing coolant into combustion chamber
White smoke from the exhaust is a sign of coolant entering the combustion chamber. Usually a blown head gasket or cracked head. STOP driving the car immediately. Severe engine damage will occur if you continue to run this engine. Sounds like steam......you may be getting coolant into the combustion chamber.
Coolant in the combustion chamber, normally caused by a blown head gasket.
Blown head gasket
If coolant isn't leaking externally then it has to be leaking internally. A leaking head gasket or cracked head may be the problem. If this is the case, as it gets worse more coolant will enter the combustion chamber or engine oil. Either way you will be able to determine as it gets worse. There will be white smoke from the exhaust. May be intermittent. This is if coolant is leaking into combustion chamber. If leaking into oil, you will notice that the engine oil will have a brown/milky look to it as you check the oil level on the engine oil dipstick.
The term "hemi engine" refers to an engine with a hemispherical combustion chamber. The word "hemi" is short for hemispherical, and it describes the shape of the combustion chamber in the cylinder head of the engine. This design is known for its efficiency in allowing air and fuel to flow in and out of the chamber, leading to improved combustion.
Diesel Engine combustion chamber types : Swirl port combustion chamber type and Preignition port combustion chamber type.