Head Bolts and Exhaust Manifold Studs

I think the studs are the same as carb studs. They have 2 different threads on them,a coarse into the block and a fine to secure the int/exh manifolds.

That is correct on the 2 different types of threads. Thanks for your help.


I have the head bolts for when I removed the head. It was always my understanding that head bolts were not reusable due to them stretching when they were torqued down. Is this not correct?