Yep, blown spark plug, threads are gone. Now who knows what spark plug insert kit do i need? our spark plugs are 5/8th or 16mm right? the kits come with different length inserts so that's not a problem i just need to get the correct kit, i only seem to find 14mm kits right now.

 

theres a helicoil kit that seems to work well. someone must have hulked it when they tightened it down.

 

so helicoil kit worked, car is fine once again, i'm not putting regular in it anymore lol. not sure if that caused this, highly doubt it, but i'm not taking any chances considering there's a spark plug in there that isn't screwed into the head but a sleeve which is in the head. i doubt that's as strong as the head itself, so no more risks for me. i gotta keep this car for another year until i save up more and the new toyota 86 comes out in spring. wish me luck lol.