Kerma-exclusive PD head Studs made from Genuine ARP parts
The original washers on the PDs are very nice. The stud kit is intended to be used with the original washers.
You've been asking and we were listening.
The cylinder head does not need to be removed to install these
Use ARP Lube. Replace bolts with studs one at a time, in sequence, tightening each stud to 100ftlbs such that the head gasket always remains compressed. After 10th stud is installed, retorque in sequence to 100ftlbs.
If cylinder head is removed: --
Use the ARP lube, tighten in the specified order, in stages. 30ftlbs, 75, 100, then go over one more time 100