checked the header on the cab full of oil, its a c20xe by the way
i checked the oil no signs of mayo though the water system is full of oil, planning on pulling the head off but unsure if its porous as its a gm head,is this common and is this a sign of being porous was guaranteed it was a good engine too,
if BIG IF it is porous i may cut my losses and fit a let,if its just gasket i will repair it and see summer out then fit a let,
any comments regarding my issue will be much appreciate it as im unsure whether to pull it to bits fully:(
