K10 Running hot

[haysonj]

I didn't read this entire thread but I did have a factory engine blow a head gasket within the first 20 or 30 min. of starting. It blew between the cylinder and water jacket so the heat from the compression was going into the coolant. If you take the cap of the radiator you will see air bubbles in the coolant. I would do a compression check on the engine to see if all cylinders are equal. If not you either need to get a leak down test or just pull the heads and replace the gasket. Should only be one side.

[killer_mike]

Yep no thermostat, i pressure tested the cooling system to 16 psi, great. Used a block tester to find if there was exhaust fumes or any fumes other than coolant/water vapors, nothing either.
No smoke at all, no coolant at the tail pipe, no oil in the coolant and the other way around. Yeah i will change those head gaskets, even if they are not bad, just for the heck of it; oh and lets not forget i burped the system too.

But right now is running fine, but like i said, i will change the head gaskets just for fun, cause the engine dont feel as strong as i thought, might be head gaskets and/or truck is too heavy for just a 290hp/326ft/p engine.

[killer_mike]

Its been a while. I took the heads off quite a few weeks ago, by my surprise, there was some kind of resin on the gaskets, my belief is that it looked more like paint than anything else, black paint that is.
And it was all over the pistons dish, valves, u name it, got the heads to a machine shop to check for warpage, lucky me, no warpage, but i told the dudes to resurface them anyways, they where dirty, very dirty. Bought bolts and gaskets and used gasket sealant on the side of the heads, it was too damn cold to put it on the deck too.

I keep u guys posted, with this experience i learned to change all gaskets and bolts even if its a new engine, specialy the head gaskets.