Issues after radiator hose came off and dumped coolant while driving

First post for me here

I have a 2013 Tundra 4.6l with 190,000 on it, i recently changed out the thermostat and like an idiot i forgot to slide the clip back up the radiator hose and it blew off while driving, dumping all the coolant, motor shutdown i had it towed to the house. Reconnected hose and filled back with water, tried to restart and it won't start, does not have a consistant RPM during startup attempt. Started troubleshooting the issues (other than having my head up my but) pulled codes P0117 and P0125 off computer. Pulled packs and plugs and started compression tests (using O'Rielly's rented tester) had low compression on driver side cylinders between 90-100 psi, front cylinder on passenger side showed 0 psi and this is where I stopped. This is a wide open question since none of you are there to actually see but am i going to just need new head gaskets and possibly machined heads or is this going to be a lot bigger issue. Forgot to mention that i have checked the oil and there's no water in the oil.

thank you in advance for all the help and suggestions

 

If coolant was lost and there's no compression i would imagine that excess heat could have damaged the cylinder bore, piston rings, piston, or a combination.

If you're already going down the road of machining the head then you might as well replace the head gasket while its accessible. if the crank case is damaged you'd be able to see it a lot easier with the head off too

 

At this point I am not sure what the course of action is, working with my neighbor on what could possibly be our issue and course of repair. I was hoping to reach out to some people that have a lot more experience than I do and hope that i could get a direction to start looking into.

I appreciate the heads up on the cylinder and piston rebuilds and I agree if we get to the point of needing to machine the heads then absolutely we will be looking at the bore, rings, piston, etc.

 

If you've done damage to the bottom end of the motor, I would definitely be pricing out a used junkyard pull. I believe these are iron lined without nikasil, so you could possibly rebuild one, but that may cost more than just replacing it.

 

audiowize this is what i was suspecting and looking at, I have already had one guy say the same thing, that it's cheaper and easier to find a used motor and drop it in and go on about your business than to pull one and tear it apart and start trying to make all the necessary repairs and hope it's good.