Lol... Things like that frustrate me too sometimes. Just went though it on an old 58 Ford with a 292. Completely bored and rebuilt the engine from the bottom up, rebuilt heads and all. Started getting raw oil in the cooling system but absolutely no coolant in the oil. Decided I may have ended up with a bad head gasket. Replaced the head gaskets and inspected everything with a fine tooth comb and found nothing to explain it. Started to drive it again and got the same thing. I have finally come to the conclusion that there is a casting flaw or crack in the block allowing oil from the oil galley running up through the head to the rocker shaft to push it's way into the water jacket.

 

The thermostat should have been the first go to check? And then recheck even the new T stat if it still persisted? Seriously, I once went through two brand new T stats before the third finally actually worked as it should.

 

ok. I'll check the t stat again and just switch the fans to pull fans and see if that helps of fixes it.

 

You haven’t done anything yet, how can you be stumped?

Clutch fan or nothing, nothing else is going to have the cubic feet per minute as the clutch fan and 1 electric fan.

Until you do that, it’s going to overheat.

Make sure you have a fan shroud for the mechanical fan too.

 

Yes I was stumped after replacing almost everything in the cooling system anyway, I figured out the issue. Well actually the shop did but it passed the block test. Yay! No head gasket repair costs. Turns out. The gauge wiring is messed up. It's not actually overheating. The gauge is just reading wrong. Now I gotta figure out the wiring tho which is really 10x worse but way cheaper so i'm happy Does anyone know any faulty wire possibilities?

 

Our fault I guess, we took it for granted that you knew what you were doing and knew for sure it was getting hot. Normally one of the the great minds here would have mentioned double checking with a temp gun to make sure was actually getting hot and not just a gauge problem. Now we have three pages of time and effort to help you and all of it was headed in the wrong direction.

 

I did check it with a temp gun and it said it wasn't overheating but you never know if a temp gun is right. There's always a chance it's wrong and buying a hundred dollar Milwaukee temp gun wasn't something I wanted to do but I guess looking back. If I had done that first I could have saved time and money given I replaced most of the parts in there anyway. You live and learn.

 

Yes it happens, been there myself. When the battery starts to go bad on a temp gun it can do all kinds of crazy things, so I can understand your not trusting it.