Ever see this on a Core/Freeze Plug?

66fyssh said

Thanks Mike!! Does the plug come out when it overheats?

Click to expand...

Hello 66fyssh,
Just as everyone stated if the engine gets too hot just the center comes out (see pix).
You can get them in different temperatures.
I think at one time GM was installing them on one of there aluminum head product lines but don't quote me on that.
Happy Mopar:)
Arron