Bad oil leak from exhaust ports

[TkrPerformance]

the arps were new they replaced the streched stock bolts

[Shane@DBPerformance]

Those regular parts store headgaskets are often junk on DSMs. I have had a couple DSMs blow them for no reason, no knock at all, at around 300awhp.

[portum89]

some are, car was barely ran after head swap, just started it and all the sudden the leak was there, so probably ran for about 10mins if so, im leaning towards incorrect sealing of the hg, i did the tq sequence a lil different, i did work my way from center to sides etc etc..just a lil different sequence, im guessing it caused it to not seal , also sending out the head to be checked just to make sure my guides and seals are all good...thanks for the input!

[CarPsyco84]

That oil could be from just pulling it apart? I've seen that exact issue before, valve seals, specifically on the exhaust valves, but just do them all.

[munchgsx]

Check valve guides and seals. Obviously the car was smoking. When was it smoking?

[portum89]

since startup never stopped, im getting the head checked by gosh might just build it.