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, 12-point Head, High Performance, For Chevrolet BB, Mark IV Block, Edelbrock Heads, Kit

ARP Cylinder Head Bolts, 12-point Head, High Performance, For Chevrolet BB, Mark IV Block, Edelbrock Heads, Kit

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ARP Cylinder Head Bolts, 12-point Head, Pro-Series, For Chevrolet BB, Mark IV w/ Late Bowtie Aluminium, Pro-1, iron Heads, Kit

ARP Cylinder Head Bolts, 12-point Head, Pro-Series, For Chevrolet BB, Mark IV w/ Late Bowtie Aluminium, Pro-1, iron Heads, Kit

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ARP Cylinder Head Bolts, Hex Head, High Performance, For Chevrolet BB, Dart Aluminium head exhaust Bolts only, (8 pieces), Kit

ARP Cylinder Head Bolts, Hex Head, High Performance, For Chevrolet BB, Dart Aluminium head exhaust Bolts only, (8 pieces), Kit

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ARP Cylinder Head Bolts, 12-point Head, Pro-Series, For Chevrolet BB, For Pontiac Aluminium head, Dart Big Chief, Kit

ARP Cylinder Head Bolts, 12-point Head, Pro-Series, For Chevrolet BB, For Pontiac Aluminium head, Dart Big Chief, Kit

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ARP Cylinder Head Bolts, Hex Head, High Performance, For Chevrolet BB, Mark IV or Mark V Block, Brodix Heads, Kit

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ARP Cylinder Head Bolts, 12-point Head, High Performance, For Chevrolet BB, Dart Aluminium head exhaust Bolts only, (8 pieces), Kit

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