Do I need to replace the head studs and bolts when doing a head gasket on a stock motor daily driver d16y8

 

No. It is commonly said that you need to, but I never once have and have not had an issue. They are supposedly stretch bolts. If your thread looks good, its fine. I usually add 5 ft/lbs as a third step when torquing down the used bolts.

 

^^ i second that, ive done HG on d series without replacing head bolts with no problem. Just clean the threads and bolt holes then dip head bolts in motor oil and torque down in three steps.

 

for a dd no I never have on a car where the engine gets taken apart frequently well you'll probably have ARP head studs so it doesn't matter. you're fine to re use them if they look good.

 

They look good to me no variation in thread spacing.
Where can I find the torque specs on here?

 

"d16y8 head torque specs" into google I don't have a link off hand

 

Here is the 96-00 D16Y5 and D16Y8 head installation page with the torques: