Coolant in cylinder 8 on 318

So my mistake guys. This engine is not sleeved. The cylinders were all so clean even 3 years after they were bored, it just looked sleeved. I just was not paying very close attention. It is simply bored. Head passed pressure test at a performance machine shop locally. I really do not think the cylinder walls are cracked. So I truly believe something simply was not sealed. Currently suspect head gasket. I am going to reinstall the head and do a cylinder leak down test.