ARP Head Bolt Kits | Multiple Jeep Fitments (146-3603) YMM_2015_2020_Ferrari_488 and most of all

and most of all

Cryo treating option available to enhance durability and resistance to warping

making it convenient for daily use

They are an ideal upgrade for enthusiasts seeking a sportier look and more responsive driving dynamics without sacrificing ride comfort

ARP Head Bolt Kits | Multiple Jeep Fitments (146-3603) YMM_2015_2020_Ferrari_488 and most of allHead Bolt Kit by ARP ARP High Performance Series head bolt kits are tough. They are rated at 180,000 psi 15 percent stronger than Grade 8 fasteners. They come available with a reduced wrenching hex head or 12 point head that help eliminate the need for valvetrain removal when re torqueing cylinder heads. Features Fastener Style: Bolt Thread Size: 7 16 in. 20 Undercut Stud: No Head Style: Hex Fastener Material: Chromoly Fastener Finish: Black oxide