My new (old) 1992 Mitsubushi Mighty Max

[claych]

In a nutshell - YES. Both the 4G54 and G63B are known to crack through the combustion chambers into the cam valley or coolant galleries. But for some reason the 4G64 SOHC heads can warp to the point they bind cams and snap them in half. A characteristic that neither the 2.0 (G63B and 4G52) or the 2.6 experience.

??seems you are intimating Mitsubishi Cyl heads are junk---
in a nutshell
Any ohc cyl head can warp to the point of cam bind in a severe o/heat incident...

As to 'straightening' the head by heat & press ???
Please do post your actual experience with same.