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Unless you actually have a crack in the block or head (water jacket) the only alternative is the head gasket. Once you have replaced the head gasket run a detergent oil for a few miles, then change the oil with your preferred type. If you blow the large collections of water out of the block and head with air pressure before you put it back together again, what little remains after you put it back together again will not harm it. Just remember to do the first oil change after only a few miles. You will see that the oil has a white-ish tinge to it. That's what happens to oil when it gets water in it.
NEW ANSWER: IT is very rare for a head gasket to leak engine coolant into the oil pan.
The reason is because of the location of the oil return holes in the top of the block were the head bolts on are a long way from the water jacket holes.
Now where the water jackets are located on the intake manifold ( All 4 corners ) There is only about a 1/4 inch from the corner of the head / lifter galley where water can get into the oil when the intake gasket blows. That is a real common problem on the 350 vortec engine and I bet that is the engine you have. NEED TO REPLACE INTAKE GASKET AND THAT WILL FIX YOUR PROBLEM. NEUTZ.
What else can I help you with?
Chevy 350 antifreeze in the oil is there anything besides a blown head gasket?
The antifreeze in the oil is a dead give away that the head gasket is blown. Make sure you send the heads out to be checked so they are not warped.
What can cause overheating in 2000 Malibu besides thermostat?
head gasket, low oil or antifreeze, malfunctioning fans.
Could antifreeze be leaking from the water pump gasket?
Yes, antifreeze can leak from a water pump gasket.
96 silverado 5.7 antifreeze in oil?
intake gasket or head gasket
Why do you have antifreeze in your oil?
a blown head gasket
The intake gasket have anything to do with the car overhearing?
ya, especially if you are leaking antifreeze internally or externally. if intake manifold gasket leaks usually have vacuum problem result in "rough engine idle" look for external antifreeze leak at manifold gasket first. then check oil for "milky color" - if antifreeze runs low due to leak = Yes - engine overheat. Dont drive it - you can do a lot more damage if you do.
Can a intake manifold gasket cause antifreeze to leake?
Yes. Antifreeze is actually pumped through the intake manifold. If the gasket is bad it is possible that it leaks out
How do you know when your head gasket is gone?
you will have antifreeze in your oil!
Where can water or antifreeze disappear to?
head gasket maybe.....
How does antifreeze get into the intake?
either you blew a rod or a gasket.
Why is antifreeze leaking around the thermostat housing?
The housing gasket may be bad. Replace the gasket.
Why would there be oil in your radiator?
Odds are you have blown a head gasket and the antifreeze and oil flow share the same gasket. As the gasket wears, the antifreeze mixes into the oil and vice versa! I suggest replacing your current antifreeze and do a full flush. Test it for a few days and test if you have oil again. A tell tell sign of a blown head gasket is black smoke (burning oil) or white smoke (burning antifreeze ) coming out the exhaust.
