Coolant leak inbetween head and block.

[Rawze]

I keep saying it but no one believes me.... Trash can overhaul parts usually = trash can results.

Also,.. I would fire the person who did that crappy counter-bore job. Those numbers are all over the place. If someone did that to my engine, I would make them do it again and correct it!.
- Here is how accurate it is when someone takes their time and does it right ...
info: https://rawze.com/forums/showthread.php?...1#pid11611

I would not give you 3 cents for that engine in the condition its in ... none of the components in it are worth putting back together at this point. - And if some shop machined that top deck ... waste of time ... Its time to throw it away!!!. I have seen where 0.002" shaved off the top deck, even if done well, ruins an ISX block.

Also.-> The front exhaust side, right and/or especially, the back intake side coolant passages are notorious on an ISX to get leaky on a badly abused engine. This is why the OEM head gasket has those laminated layered corners .. to help stop it.

To me,. it also looks like someone smeared waay too much aerobic sealant in those areas as well. I have done blocks that were pitted to h#ell and beyond on those corners, and never had to use that much sealant for it not to leak... matter of fact,, I have never had one leak like that after I got done with it.. but then again.. I only ever use all OEM parts including head, etc... and clean up the deck myself

Also... that top deck looks terrible overall. I clean them by hand.. + hone only enough to get back down to, and reveal the original machining marks from factory again,.. and no deeper... and not with a godd#amn wire-wheel and other harsh methods like was clearly used on that block. Its scratched all to h#ell in 50 different directions.

I.E.> I would also fire whoever scratched up that top deck so badly with an abrasive wire-wheel, sand paper, or whatever garbage they used.

- If you can't see those original factory blanchard-grinder machining striations, usually with some bit of normal galvanic discoloring (blocks with a lot of miles on them), revealing them all the way across that top deck, then something is wrong!. - Usually, its due to some yahoo that dug into the deck too deep with power tools and wire or sander wheels, etc. ,... trying to make it all shiny again, like an utter complete fool!.

Trying to make the top deck perfectly shiny is a MISTAKE...
Here is a perfectly clean and leveled top deck, ready for a new head and head gasket. It should typically look like this ...

(right click to see bigger image)

This is one of the things I specifically look for when inframing one... and hence WHY I do not use any abrasive or powered cleaning methods on them.

In the photo(s) that you provided above... To me, it looks like the whole top deck on that one is ruined at this point.