Open Box, everything is as you would get new from ARP. ARP 234-3711 Pro Series Head Bolt Kit 12-point Head, ARP 2000 Material, Includes M8 Corner Bolts Fits 2014-Newer Gen V LT Engines LT1 LT4 L83 L86 L84 L87 L8T L8B 5.3L 6.2L 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 220,000 psi. Features 12-point heads. All kits come complete with hardened parallel washers for even load distribution and accurate torque readings.
