I can see where it looks like oil coming from some of my exhaust ports and barely seeping out around the header flanges. I'm kinda worried. What causes that?

 

ide like to know also i had the same thinghappen .kinda weird it was def coming from exhaust port from behind the header gasket.donnt know what the heck caused it.

 

does it smoke when its running? checked for any valve cover leaks?

 

No, I haven't noticed any. It's been cold and it has, but it's normal. No valve cover leaks.

 

mine def isnt coming from valve covers sounds like the same thing as the other guy ,def coming out of the exhaust ports i cleaned em about 2 weeks ago and it came back.opinions wanted .the only coincidence is that i did lightly overfill my oil a tiny bit but i dont think this did it .

 

people on ls1tech are say valve stem seals....That sucks because the heads only have ~18,000 on them.

 

mine could be because when i did my springs and cam my local shop lost a few of my seals and used a diff kind ,that always made me wonder.good to know .i wonder what other repercussions this will cause or if itll be ok for a wile .?