These engines use TTY head bolts. You do not simply "torque down the heads and that's it"

This ain't no old school small block Chevy.

At a minimum, you'll need to pull the heads, clean everything up and re-install them with new head gaskets and head bolts. You *should* have the heads gone through to freshen them up.

 

If you try to just torque down the heads, you'll snap some bolts and/or pull some threads and/or warp the heads.

 

Yea I know you have to do the degrees and the correct pattern

 

And I'm replacing all of the gaskets and bolts