You really should check around for a whole new engine for that even if it might set you back a couple grand. You would have a new engine in your chase ride that would be good for another 200K. Just look at what it would cost for a new truck vs a new engine in a truck that your already used to and won't cry if you get cored... again.
Thanks for the input all of you. Doug, etc I probably should have gone that route as I had a quote for $2200; however I found a guy that was going to do the job for $1100. I figured that justified it, but when it was in the shop it needed a water pump (which is probably what caused the initial overheating), and new hoses - then a few more piddly things. So I get out instead for about $1700 including tax. However I take it out driving and have terrible ping (possible minor detonation) when in overdrive going up hills at say..60mph+. I take it back and the guy says it needs a major tuneup, and that the wires are arcing. Typically I tune it myself but I just want it running at this point so I let him go ahead. I think he charges $350 or so for that plat plugs, wires, rotor, cap and new fuel filter. Bend over I suppose eh? By the time I get out the door and it is running I've put in about $2100 including tax.
Well, at least it is running again. 200k miles hmm.. and now that it is running I at least have to consider some type of trade in or new vehicle. Gas mileage is bad on the Tahoe, but payments or cash outlay on a new vehicle will buy a lot of repairs and expensive gasoline. BTW I hear many expect gas to go to $3.40 - $3.50 a gallon through perhaps next June until they expect the price per barrel to drop to about $70 - then hopefully relief.
Right now, I am just driving the Tahoe. It takes fewer brain cycles to just keep driving it, but I'll continue to ponder the idea of a replacement if I can think of a suitable one.
I should mention one thing that bothers me in some of the newer and smaller vehicles is a place to put things like notebook computer, and dashcam. My Tahoe has plenty of room, and only the drivers side has airbags so no worries of the passenger getting a dashcam or notebook in the face on impact. All the smaller / newer vehicles though have no good place to put things as they typically have accessories everywhere or uneven mounting surfaces. Likely I would have to find some new type of mounting hardware solutions. I did notice many of the new vehicles have built in gps with moving map. That might save some room if as detailed as Delorme, but of course there would be no overlayed radar.
Possible new system in this Mon / Tue. I need to get my com port fixed on my notebook just in case a local chase is in store....