I have a 1989 300-6 it just shut down on me had to have it towed checked spark but real weak,I cranked it over and it won't fire any way I happened to check radiator when I took the cap off it pushed the water out as if it was hot does that mean I have a head problem also seems like back pressure in the radiator. help

 

I would put a vacuum gauge on it to check if there's a dead cylinder. Or a compression tester.

 

If you take the cap off of a warm radiator COOLANT will come out/over flow! That is normal.

 

yes but it has been sitting for about a month after i tried starting it must be back pressure even when cranking over.

 

Yes but it is not warm it won't start just from cranking over it just seems like back pressure to push water out right. thanks for previous reply