Mast Part Number:ARP-134-3609
For use on GM LS Gen III engine blocks only!
Fastener Finish:Black oxide
Cut to Fit:No
Quantity:Sold as a kit.
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.