Truck overheats I changed t-stat and antifreeze

head could be warped or cracked bad rings or internal jacket damaged --do a compression test on engine and cooling system also pull plugs and check for abnormal burn

I'm guessing a new engine block is due....
at the temperatures you describe it is very possible that the water inside this cast-iron block is Still rock solid frozen.
I just cannot fathom how come you have no antifreeze in that vehicle in the first place! antifreeze can be had for six bucks a gallon!
if small bubbles come up in the radiator you might have already a cracked cylinder head and compression gases pushing through.
One Last hope you can have is that you got an air pocket in the water cannot circulate. but if it was frozen and you cranked your probably ripped off the water pump rotor blades...

There could be a bunch of stuff going on. First I would take off the radiator cap or the overflow cap from the plastic tank, as most newer cars don't have radiator caps any longer and everything is filled via the overflow bottle. Drive the car until it gets to running temp. Then keep going and see if it overheats. If it does you have a bad radiator that is not holding pressure and U will have to replace that also. Are U sure the stat is working? tap on stat housing gently with a small hammer this sometimes frees them up. Even a new stat could get stuck. Did you put clean antifreeze in? At a 50%/50% mix. If not this could also cause a car to overheat or ran cold. You can do worse damage to your system by using straight antifreeze, that is why the bottle always tells you to mix as well as your owners manual.

Radiator is restricted, flush or replace.

Was it knocking in the radiator when it over heated if so you most likely got an air lock in the system by pouring the new antifreeze in to fast. You need to add it real slow and once you think the radiator is full start the truck and let it warm up and leave the radiator cap off until the thermostat opens and then add more antifreeze because when the stat opens the level will go lower. Once you are sure the antifreeze is circulating an full then you can go drive the truck. Some people use a 50 percent mix of antifreeze to water but I always use 100 percent antifreeze it runs cooler.

Its easy follow the top radiator hose back to the engjne to the goose neck the t.stat is under this part Drain some antifreeze from radiator you don;t have to drain itall out Remove clamp from hose to goose neck Remove bolts holding neck on you will lose a little antifreeze in the prosses Claen all old gasket meterial off bolth sides this is important it must be clean Remove old t.stat check the tempature stamped on t.stat replace with the same or similar temp you don;t change this to much Install new t.stat and gasket you can use a sealer it won;t hurt Install goose neck but don;t over tighten you can crack the neck 10 to 12 ft lbs is all you need BUT THE T.STAT IS NOT USELY NOT THE PROBLEM WITH COOLING SYSTEMS you can try back flushing the system and putting new antifreeze first this may solve your over heating problem

OK, Remove your t-stat, disconnect radiator hoses, drain radiator, and flush the heater core. now climb under the truck and you should find two (one on each side) coolant plugs. just unscrew them and let it drain out (into a pan I hope) good luck, really simple to do

I would change the thermostat and radiator cap. The T-stat is what controls the engine temperature and is is probably stuck shut. This part is man made and will fail sooner or later. The rad cap is cheep and should be replaced when a T-stat is changed.

We went to the website for Peak AntiFreeze and trying burping it for air. VOILA! Flushed and burped running beautiful now.

what you have too do is heat the truck up and as the truck is warm take the small hose off the head and take the cap off the water bottle on the side wram engine!!! not hott!!! let the water and antifreeze come out of the small hole it needs too be bleed from the replace hose back and it should be fine warm moter not hott!!