Chevrolet Repair: Oil in radiator, blown head gasket, celebrity station

Question
The coolant in the radiator has turned into a gray oily gooey mess.  The oil in the engine seems to be fine. Do I have a blown head gasket?It's a 1987 Chevy Celebrity Station Wagon, V6. The last major repair was when the timing chain broke; the valves had to be replaced too. That was 2 years ago and I noticed some oil in the expasion tank at that time.  

Answer
Hello Cliff, The only way oil can get into the radiator is if someone put it there OR you have a crack in the engine block. The crack would have to be at a oil galley to use oil pressure to force oil into the cooling system. Coolant wouldn't go back into the oil because there isn't enough pressure.

Hope this helps !!

Mark