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.

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ARP Cylinder Head Bolts, Hex Head, High Performance, For Oldsmobile, 307-350-403-455, (1977 & later) 1/2 in, Kit

ARP Cylinder Head Bolts, Hex Head, High Performance, For Oldsmobile, 307-350-403-455, (1977 & later) 1/2 in, Kit

$175.71

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ARP Cylinder Head Bolts, 12-point Head, High Performance, For Oldsmobile, 350-455, w/ factory Heads or Edelbrock Heads, Kit

ARP Cylinder Head Bolts, 12-point Head, High Performance, For Oldsmobile, 350-455, w/ factory Heads or Edelbrock Heads, Kit

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ARP Cylinder Head Bolts, 12-point Head, Stainless, For Oldsmobile, 350-455, w/ factory Heads or Edelbrock Heads, Kit

ARP Cylinder Head Bolts, 12-point Head, Stainless, For Oldsmobile, 350-455, w/ factory Heads or Edelbrock Heads, Kit

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ARP Cylinder Head Bolts, Hex Head, Stainless, For Oldsmobile, 350-455, w/ factory Heads or Edelbrock Heads, Kit

ARP Cylinder Head Bolts, Hex Head, Stainless, For Oldsmobile, 350-455, w/ factory Heads or Edelbrock Heads, Kit

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ARP Cylinder Head Bolts, 12-point Head, Pro-Series, For Oldsmobile, 350-455, w/ factory Heads or Edelbrock Heads, Kit

ARP Cylinder Head Bolts, 12-point Head, Pro-Series, For Oldsmobile, 350-455, w/ factory Heads or Edelbrock Heads, Kit

$309.19

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