Oil in the radiator

 1980 FSJ with a 360 I have owned it for 8 years.

Runs strong but I have a small amount of oil in the radiator.

No water in the oil.

Head Gasket is not blown.

Are the oil and coolant passages next to each other on the head gaskets? or on the timing case?

I think I may have the oil entering the cooling system thru a bad gasket or do I have a bad timing cover.

Any Ideas?

Thanks

I am thinking is has to be between the oil passage and the coolant passage, just not sure where or if my timing cover has corroded  thur from the oil pump into the coolant passage or the head gasket has corroded between the oil passage to the rockers and a coolant passage.

I have never tore down a AMC v8 and not sure the layout of the oil and water passages.

 It seemed to be restricted to what AMC sold International. Rumor had it that AMC farmed out casting to a GM division at the time to up production.

That is simply incorrect. International bought AMC 401 engines due to a shortage of their 392. They were already buying 232 and 258 sixes. There is zero difference in the castings. I have at least 3 "International" 401s in my garage and one in my race car and have never had issues resembling what you describe. The problem likely here is the timing cover bolts have loosened and may be seeping past the gasket or corrosion in the water pump cavity creating small holes. I tighten all my timing covers on a regular basis along with oil pan as the vibration on my race car shakes them loose after a few hundred miles and start to see oil seepage

 

AMC engines were used due to a strike that caused shortages of the larger v8 IHCs.  And just how do you pull the heads and put the rockers on upside down and then pressurize the block to 60 psi.  I build a few AMC engines a month and more than a few 400 IHCs and this just makes absolutely no sense!