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, AMC, 258, inline 6 w/ 1/2 in. Bolts, Kit

ARP Cylinder Head Bolts, Hex Head, High Performance, AMC, 258, inline 6 w/ 1/2 in. Bolts, Kit

$127.25

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ARP Cylinder Head Bolts, Hex Head, High Performance, AMC, 304-360-390-401, (1970 & later) w/ Edelbrock Heads 1/2 in., Kit

ARP Cylinder Head Bolts, Hex Head, High Performance, AMC, 304-360-390-401, (1970 & later) w/ Edelbrock Heads 1/2 in., Kit

$214.66

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ARP Cylinder Head Bolts, Hex Head, High Performance, AMC, 290-343-390, (1969 and earlier) w/ Edelbrock Heads, Kit

ARP Cylinder Head Bolts, Hex Head, High Performance, AMC, 290-343-390, (1969 and earlier) w/ Edelbrock Heads, Kit

$355.45

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ARP Cylinder Head Bolts, Hex Head, High Performance, AMC, 401, w/ Indy Heads, Kit

ARP Cylinder Head Bolts, Hex Head, High Performance, AMC, 401, w/ Indy Heads, Kit

$226.33

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ARP Cylinder Head Bolts, Hex Head, High Performance, AMC, 290-343-390, (1969 and earlier), Kit

ARP Cylinder Head Bolts, Hex Head, High Performance, AMC, 290-343-390, (1969 and earlier), Kit

$156.32

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