jaydog5.0

Ok i got 86 5.0 lx.and i try to take off the old filter. After about 30 minutes of fighting with this thing. i tore the dam thing apart. I can see the screw that fit in the engine block. I used wd-40 no luck. Any idea out there guys. Im thinking about heating the nut up. But i dont want to start a fire. Or is that the only way?

my77stang

hammer and chisel (or flat head screwdriver). use it to unscrew one smack at a time