Found the problem
Replacing the engine block on my Mustang with the fortified version because my head gasket blew 3 months after having a mechanic change it for $3k in December, when removing the head gasket I found this little knick in between 3 and 4. Do you guys think that was there when he replaced it a few months ago and he just ignored it? My fingernail grabs in the spot it’s pretty deep. Everyone keeps telling me just sell it and get a new car but what do they know!!
u/S550ecobust — 4 days ago