oil in coolant?!?

[GSPI]

How have you diagnosed the coolers? I agree that it would be the most logical place but have you pressure tested the coolers? Might want to fill the cooler with water after capping off one end and pressurize with 15-20 psi air (make sure you have a gauge on it) and watch for loss of pressure. If it drops over time you have a pinhole leak in it most likely.

I was looking at the water pump inlet area and do not see any way for oil to be drawn in there so it really has to be in the area of a heat exchanger like the oil coolers.

[67gt500]

Not the oil cooler, took it off and flushed, still getting in somewhere. Timing cover is new also, so no worries about corroded cover

[w4ata]

My 89 had the same problem when I got it. Turned out to be a gasket issue between the lower intake and the engine. Not serious but a pain. Same thing, oil in the coolant but no coolant in the oil.

[67gt500]

I wanted to follow up on this just in case it comes up again in the future. I did get the problem solved and fixed. It was a lower intake manifold to head gasket that was not seated properly, allowing small amounts of oil in. new gaskets and its like new!
Thanks to all for the input!

P.S. I also spoke with a guy familiar with ssp's in my area and he has seen a few engine coolers go bad. almost impossible to pressurize it from the oil side but he has done it.