Description
If you are going to be running boost levels over 9 psi, we recommend you upgrade your head bolts to these made by ARP. They are cold-forged heat-treated 8740 chromoly with a black oxide finish and rated at 180,000 psi–15 percent stronger than Grade 8 fasteners. All kits come complete with hardened parallel washers for an even load distribution and accurate torque readings.
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