I’ve got a 92 F150xlt 5.0/302 auto 2wd very low mileage with very high hours. I just replaced the intake gasket due to major coolant leak into airflow, took care of a bunch of incidentals, and discovered multiple computer failures during the process (brain transplant was a complete success).
Still have coolant in my exhaust and the #4 is misfiring continuously, may have been preexisting but is worse now. From what I’ve researched so far, I’m looking at a head failure, but what, where, and how should I proceed?
thanks in advance

 

Have you replaced the head gasket?
That is where I'd start, and check the head for cracks (between the valves is a common place for them to crack)
I would suspect gasket failure and the head itself being okay
They do not crack often IMO

 

I haven’t had a chance to crack into it: long haul driver running the post harvest pre holiday cranberry mad season. I’m doing my research / mental prep during my enforced downtime