PPE Cylinder Head Studs are precision centerless-ground for accuracy. Thread-rolled to Mil-S-8879 specifications for increased strength while reducing stress at the threads. Hardened parallel washers for uniform load distribution and accurate torque readings. It is highly recommended for boost levels of 45 psi and higher.
Each kit comes with hardened parallel washers, and nuts for uniform load distribution, accurate torque readings.
If your looking for the BEST value and performance in Cummins heads studs, backed by DHD's standards, knowledge and know-how. See DHD Torq Series Cummins Studs 800-067.
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