The Pro series cylinder head bolts from ARP are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining, and are rated at a whopping 190,000 psi. The Pro series are also available with hex and 12-point heads. All kits come complete with hardened parallel washers for even load distribution and accurate torque readings.
Specs:
- Cut to Fit – No
- Fastener Finish – Black Oxide
- Fastener Material – 8740 chromoly
- Fastener Style – Bolt
- Head Style – 12-point
- Quantity – Sold as a kit
- Undercut Stud – No
- Washers Included – Yes
