ARP PD Head Studs, Kerma Exclusive

What It Is
A Kerma-exclusive PD head stud kit, made from genuine ARP parts, built specifically to use with the original PD washers rather than requiring a full washer replacement.

What's Included

• Head studs
• Nuts
• Assembly lube

Why the Original Washers Stay
The factory washers on PD engines are well-made, so this kit is designed to work with them directly rather than replacing a part that doesn't need it.

Installation
The cylinder head does not need to be removed to install these studs.

Installing Without Removing the Head

• Use ARP lube on every stud
• Replace the factory bolts with studs one at a time, in the specified sequence, torquing each to 100 ft-lb so the head gasket stays compressed throughout
• After the 10th stud is installed, go back through the sequence and retorque everything to 100 ft-lb

Installing With the Head Removed

• Use ARP lube and tighten in the specified order, in stages: 30 ft-lb, then 75 ft-lb, then 100 ft-lb, then one final pass at 100 ft-lb

Fitment
PD engines (BEW, BHW, BRM).

Common Questions

Do I need to remove the cylinder head to install these?
No. These studs are designed to be installed one at a time in sequence without removing the head.

Can I reuse my factory washers?
Yes, this kit is specifically intended to be used with the original PD washers rather than new ones.

What's the torque sequence if I do have the head off?
Three stages using ARP lube: 30 ft-lb, 75 ft-lb, 100 ft-lb, then a final pass at 100 ft-lb.

Is assembly lube included?
Yes, it's included in the kit.