OLDSMOBILE ARP HEAD BOLTS 1/2 INCH , PERFECT FOR OLDSMOBILE ALUMINUM HEADS

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 6-point heads that eliminate the need for

 valvetrain removal when re-torquing cylinder heads.

EVERY BODY KNOWS ARP IS BEST IN INDUSTRY