If you are running in excess of 45 PSI on your 12 valve Cummins, your stock head bolts are in serious danger of stretching, causing head gasket failure. ARP diesel head studs are good insurance against head gasket failure.Don't let a blown head gasket ruin your day at the track.
To overcome head gasket failures that can occur in diesel engines employed in truck and RV applications, industry leader ARP has introduced extra heavy-Duty head studs for the popular Dodge powerplants. These ARP studs are rated at 220,000 psi tensile strength, and provide the clamping force required to keep cylinder heads from lifting due to higher combustion pressures. The studs are manufactured in ARP's Santa Paula, CA plant from proprietary ARP 2000 material, with threads rolled after heat-treat to provide optimum fatigue strength. They are centerless ground to assure perfect concentricity. The ends of the studs are broached to facilitate easy installation. This feature also enables the cylinder head to be removed in tight quarters. Also included in each kit are heat-treated, chrome-moly steel 12-point nuts and parallel-ground washers. They are black oxide finished for extra durability.
| Specifications |
|---|
| Socket Size(s) | 10mm 12pt, 14mm 12pt, 5mm Allen |
ARP 247-4203 Hightlights:- Ample clamping force prevents cylinder heads from lifting
- Threads rolled after heat treatment for optimum fatigue strength
- Rated at 220,000 psi tensile strength
- Chrome moly steel 12-pt nuts & parallel-ground washers included
- Centerless ground to assure perfect concentricity
- Broached stud ends install & make cylinder head removal easier
