Hi Scotty! I have a 98 Chevy Silverado c\k 2500 7.4 454 V8 4X4 NA SFI, 4L80E automatic trans, with 215600 miles. My engine has seized up due to some bad mechanic work done by my brother. I bought it back in 2014 when it had 160000 miles on it from a P/O for $1500. It was a non-op vehicle in great looking truck inside and out when I bought it but the owner didn't know what was wrong with it and it just stop running and he didn't want to put any more money into it to fix it so he sold it to me for that price at that time. Come to find out the problem was it needed a new gas filter and fuel pump to get it running again and once I got it running it sounded and ran great and passed smog on the first try. HAHAHA! 

It cost me $680 all together to fix it, pass smog test  and register it at that time. It ran great for three years then things started to fall apart and got parts stolen of it. 

The first thing I had to replace was my Rear Axel. Then a year later I had to have my PCM upgraded and reprogramed. Then during that same year I replaced radiator and my  transmission failed. So after that happen I had to wait to save up the money and find a good affordable mechanic and transmission to replace it. So after two years I saved up the money to fix it but while it was sitting in my gated parking lot some tweaker thieves came and stole my Gas, by cutting and breaking my filler hose, my starter and my Catalytic converter. So I had to save up even more money for those replacements.   The Filler Hose, starter and starter cables  were affordable and easy to find but the cat wasn't. OMG! I was price shocked and pissed off by the unbelievable price gouging cost increase for the replacement CAT. This happen at the start of all the CAT thefts so the price was outrageously sky high here because I live here in California. So it took me sometime shopping online for  a affordable CA certified CAT and I finally found one in Colorado for $400. LOL! 

 Anyways, Before my engine seized, I finally had everything fixed and replace and gave it a tune up and then got it to pass smog and then paid my registration. All that cost me $3900. Oh and I almost forgot I also bought and put on a set of later model OEM Rims with good tires for $400 and a set of Stainless Steel Tube Running Boards for $200. So including those things that brings the total to $4500. 

 It ran great for 6 months then my OEM distributor broke because it was old and made of plastic. So my brother offered to replace it if I buy the part. So I did and I let him because told me he was a master mechanic in the Army so I trusted him to fix it right. After got done he went to test drive it and he said it started knocking real bad and he barely got home and parked it when it seized up. So now I need to replace my engine and I know it's going to be expensive.

 So my question to you is, after knowing everything that I bought and replaced, do you think I should invest and replace my  whole engine or just the block and heads or should I just get rid of it and sell it as is? Because I estimate it's going to cost me $3500 minimum if I find a good used low miles one to do so.

 Thank you for taking the time to read this and I appreciate any thoughts and advice you can give me.

I hope and wish you and your family have a Happy New!