Thanks guys for all the help/advice! Lower radiator hose is done coolant is in fuel shut off solenoid connected properly now. Today I need to attach my cable to the throttle pedal and hopefully take it for a ride. I was able to get a friend of mine to make a couple of adapters, one is two and a quarter down to 2™ and the other 2-in down to 1.75 and then the final one to an inch and a half. They were all 4-in adapters out of exhaust pipe. So apparently now I need to have the computer reprogrammed to have the electric fans come on prior to the original 230° setting or whatever it is. I've already talked to a local shop who can take off the dash lights using his computer, so hopefully he can adjust the temperature setting for the fans also.
So far, just idling for several minutes plus driving it for roughly about 5 mi now it seems fine. But time will tell. I would probably do a few things differently in hindsight but I'm really satisfied with the outcome.
Update, just as few odds and ends left but it is now drivable. I'll probably be fine tuning and upgrading for years to come 😁. I have driven it around town, to the alignment and exhaust shops. It's great, very happy with the 4bt/NV4500 setup.
Nice build. I went the VW TDI in my 08 JKU and its been fantastic and 29 MPG.
I'm interested in how you made out with reprograming the JK ECU to get rid of dash lights? I need to find someone to do that to my 08 Dakota ECU with the Cummins ISB170.