I just got done from having the same problem. Yes it is your head gasket that is shot.
I really reccomend you having someone there with you that has done it before. But I'll try to shed some light on it for ya
Pulling everything off is pretty straight forward.
Make sure you have everything absolutely clean before re-assembly. You might wanna have your heads checked to make sure they are perfectly flat.
when installing, the head gaskets go on dry, not RTV or gasket sealant. I suggest getting a set of ARP head bolts, because you wont wanna re-use your stock ones. And ofcourse follow the correct torque sequence and settings.
You'll wanna put a good coat of black RTV around the coolant passages on both sides of the intake gaskets, as well as the corners on the ends where the intake meets the heads/block.
Then from there, its just torquing the rockers back down properly, and everything else is pretty self explanitory.
Good luck with it
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NMRA O/C 9516
NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft
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