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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
Notes:Outer row of bolts are polished stainless steel.
Copy and paste link for installation instructions:
http://arpinstructions.com/instructions/134-3609.pdf
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