New problem, head crack?

[alundra]

Here is the problem:



Some water exit from it. This crack is located upper the middle between the 3rd and 4th stud motor/exhaust manifoild. A crack is also appeared between the 1st and the 2nd.

Can I weld it? Is it aluminium, right? Solutions? Any experience on it?

Thanks guys, save my s12.

P.S: my mods stock T2, stock boost, I/C setup, cold sparks, 2 1/2 exhaust and K&N sport filter in box.