Product Description
These ARP High Performance series head bolt kits are tough! They are rated at 170,000 psi--15 percent stronger than Grade 8 fasteners. They come available with hex heads or reduced wrenching 12-point heads that eliminate the need for valvetrain removal when re-torquing cylinder heads.
Fits:Mark IV BBC with Edelbrock Performer/ Perfromer RPM Heads P/N 60409, 60429, 60459, 60479, 60499, 60559
Black Oxide
Hex Head
