Sounds like the job went warranty after reading that. Don't even know why they would send a field engineer, they told the tech to replace long block, injectors, and intake manifold (intake manifold replacement is standard procedure for total loss engine replacement). Unless the tech finds some more evidence (like rogue material markings on the piston/combustion chamber), that thing is warranty according to hotline, i.e., a sublet company of fomoco lol.