Cracked head or liner?

[Mluper]

Wow great idea. Also on the egr cooler I didn't block the coolant circulation. I put a freeze plug in between the egr and egr cooler. I put another one over where the hard line ties into the intake. So if I disconnect that hard line it's completely full of coolant and pressure. I double checked that the plugs were holding seal and even welded the egr valve closed to be sure. Otherwise I didn't plug off any coolant lines.