need help

[kbrock1]

Okay let me give you the story. I am having some kind of coolant problem. After hard boost some times it will blow coolant out of the overflow tank. The car has only got hot one time because it got extremely low on coolant. The car is not an everyday driver I only drive it at the track and to play around or if I don't feel like paying $40 for gas for my truck. I am pretty sure it is a small leak in the head gasket or the turbo. I did a pressure test on the intake today and I could hear something bubbling and I couldn't tell if it was coming from the turbo or the headgasket. What kind of shaftplay should I have.
My mods are eagle rods, wiesco pistons, hks cam, oversized valves, cosmetic headgasket and 16g turbo and several other thing to go along with it. I am just wonder has anyone had this problem and what caused it.

 

[Violater101]

Time to pull the head...looks like you blew a headgasket pushing coolant like that. That is a typical sign unfortunately You might do a compression check if you don't feel like pulling the head just yet.

 

[RossY]

Violater101 is right, but after you get the head off you may want to get it checked for any kind of warping. Unfortunately, our aluminum heads can't take too much heat or they warp all to hell.