b18b1 new head gasket new intake manifold gasket the head is not warped or cracked and none of the sleeves are cracked and the block is not warped the car runs fine and then itll start pouring out white smoke and you can see antifreeze dripping from the exhaust where the header meets the catalytic converter just built the engine cant figure this out i appreciate any help thanks

 

blown head gasket for sure, check for creamy milky oil.

 

oil and antifreeze never mixed oil is fine brand new head gasket

 

Well the only way (I know of at least) that coolant can end up inside the exauhst pipe is if coolant is flowing out of the exauhst valves from the combustion chamber. This means coolant is leaking into the combustion chamber through the gap between the head and block.

Only other thing I can think of is if your intake manifold isnt sitting flush on the head and its pooring coolant into the intake ports next to it.

 

thats what i was thinkin but i tried 2 new intake manifold gaskets n the same thing happens and theres no old gasket still on the head or intake manifold

 

sounds like the head to me......