Head studs

[TX Gooseneck]

At what level do these become a requirement? Is ARP the only game in town? What should I expect to pay?

 

[FDavid]

The general rule of thumb on a cummins is to not exceed 50psi. However the 3rd gens have a little better headgasket and some have seen 65psi with no problems.

 

[Forrest Nearing]

IMHO ARP is the only option

 

[ATSDiesel]

50-65psi head studs, 65-75psi o-rings, 75+ fire rings