I hope one of you guys can help me out. I noticed a oil spray on the front of the engine and radiator hoses. I removed body work and noticed oil seeping out of a small hole underneath where the exhaust header connects to the cylinder head. There is one hole underneath each exhaust connection on the cylinder head. The far left one is weeping oil while the engine is running. Does anyone know what the holes are called and what would cause it to leak oil. Also if anyone knows about how much it would cost to repair.

Thanks