225 slant six problems

hi, I've bin having some problems with my slant six and was hoping someone could help me out, theres white smoke coming from the exhaust, I check the spark plugs and cyl.1 is dry and black , cyl2-5 are a yellowish brown color, and cyl.6 is covered in oil... also I've bin having a misfire coming from cyl.1, also theres some oil in my radiator. could this all be caused by a bad head gasket? or could it be something else?? any info would help... Thanks!
Yes I sounds like you have a bad head gasket. Or a cracked head.