Update on the overheating issue:
Thanks so much for the input so far. Belt looked tight water pump working good and functioning correctly. I was able to free the crud out of the back drain hole with a small punch and hammer. When the dam broke chucks came out. I then flushed the block with a hose and more chunks and "mud' came out. Took it for a ride and it overheated again but it took a lot longer to get hot. block was reading 170 degrees and the head was reading 235 degrees from my heat gun. At this point I decided to remove the head, freeze plugs and water pump and cleaned all the water passage ways I could with a coat hanger, compressed air and a flashlight. I got out about a dozen or so chucks of pieces that looked like corn flakes and more mud type materials out of the block. But overall I dont think it looked that bad. Head gasket looked ok. From what I could tell all the passageways are now clear.
So I guess I need to put it back together again. I am hesitant on pulling the block because I am nervous that I will be able to put it all back correctly. My skills are about a novice level. When I took the head off I took lots of photos and labeled everything.
Any other recommendations before I put everything back? I am not sure it it matters but the system was converted to 12V recently before I purchased the truck (new started & alternator) I am just mentioning this because it is yet another change that was done to the truck. Also I was thinking about putting the original radiator back in instead of the aluminum upgraded one that was on the engine then I got the truck. I prefer to get the truck back to stock as much as possible. Any input would be helpful.

Last edited by Kudubull; 08/23/2022 3:56 AM.

Scott "Kudubull"