Ok, lets say i'm a dummy. I tried using this calculator , but somethings off http://charles.generationz.net/Supra/headgasketsize.html. If the stock HG is 1,37mm, we took 1,00mm from the block and 0,4mm from the head. Where does this leave me?
1mm = 40 thou
.4mm = 15 thou
55 thou = 1.39mm, you add this to 1.37 to get 2.76mm, closest you'll find is a 3mm MHG, never seen a 2.8mm.