This Part has options, please click the button below to order.
860-135-3701 Hi-Perf Head Bolt Kit, Big Block Chevy 396-402-427-454, Cast Iron OEM Heads
HIGH PERFORMANCE SERIES
High Performance head bolts are available with a reduced wrenching hex and wide area flanged head that eliminates the need for valve train removal to facilitate cylinder head re-torquing. All High Performance Series bolts are 170,000 psi (which is 15% stronger than Grade 8) and kits come complete with hardened parallel-ground washers.
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This Part has options, please click the button below to order.
860-235-4201 Big Block Chevy Head Studs w/12-Point Nuts
Big Block Chevy 396-402-427-454 Cast Iron OEM
Mark IV w/ Aluminum Factory Heads and Early Bowtie
Exact Tolerances for Perfect Alignment
Exact tolerances ensure that gaskets and cylinder heads just glide into position and align perfectly. Head Studs include hex nuts and are manufactured by from premium 8740 chrome moly steel and heat treated to 190,000 psi. They are thread rolled after the heat treating process, which vastly improves their fatigue tolerance compared to studs threaded before heat treatment. High-quality, parallel ground washers included.
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This Part has options, please click the button below to order.
860-235-4106 BBC Head Studs w/Hex Nuts
- Big Block Chevy Long Exhaust Studs with Nuts and Washers 6.120" in Length
Exact tolerances ensure that gaskets and cylinder heads just glide into position and align perfectly. ARP Head Studs include hex nuts and are manufactured by ARP from premium 8740 chrome moly steel and heat treated to 190,000 psi. They are thread rolled after the heat treating process, which vastly improves their fatigue tolerance compared to studs threaded before heat treatment. High-quality, parallel ground washers included.
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This Part has options, please click the button below to order.
860-235-4302 Head Studs w/12-Point Nuts
Big Block Chevy Brodix, -2/-4/2x/3x, Canfield, Holley, Big Duke
Exact Tolerances for Perfect Alignment
Exact tolerances ensure that gaskets and cylinder heads just glide into position and align perfectly. Head Studs include hex nuts and are manufactured by from premium 8740 chrome moly steel and heat treated to 190,000 psi. They are thread rolled after the heat treating process, which vastly improves their fatigue tolerance compared to studs threaded before heat treatment. High-quality, parallel ground washers included.
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This Part has options, please click the button below to order.
860-235-4702 BB Chevy Brodix undercut 12pt head stud kit
Exact tolerances ensure that gaskets and cylinder heads just glide into position and align perfectly. Head Studs include hex nuts and are manufactured by from premium 8740 chrome moly steel and heat treated to 190,000 psi. They are thread rolled after the heat treating process, which vastly improves their fatigue tolerance compared to studs threaded before heat treatment. High-quality, parallel ground washers included.
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This Part has options, please click the button below to order.
860-235-4502 Big Block Chevy Brodix w/undercut - Pro Series Studs
High Performance head bolts are available with a
reduced wrenching hex or 12-point and wide area flanged head
that eliminates the need for valve train removal to
facilitate cylinder head re-torquing. All High Performance Series
bolts are 170,000 PSI (which is 15% stronger than Grade 8)
and kits come complete with hardened parallel-ground washers.
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This Part has options, please click the button below to order.
860-235-3701 Big Block Chevy - Pro Series 12-Pt. Bolts
High Performance head bolts are available with a
reduced wrenching hex or 12-point and wide area flanged head
that eliminates the need for valve train removal to
facilitate cylinder head re-torquing. All High Performance Series
bolts are 170,000 PSI (which is 15% stronger than Grade 8)
and kits come complete with hardened parallel-ground washers.
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This Part has options, please click the button below to order.
860-235-4303 ARP Head Studs w/12-Point Nuts
- Big Block Chevy Late Bow Tie, Dart Merlin, Dart Iron and Aluminum 360, and Edelbrock Heads
Exact tolerances ensure that gaskets and cylinder heads just glide into position and align perfectly. ARP Head Studs include hex nuts and are manufactured by ARP from premium 8740 chrome moly steel and heat treated to 190,000 psi. They are thread rolled after the heat treating process, which vastly improves their fatigue tolerance compared to studs threaded before heat treatment. High-quality, parallel ground washers included.
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This Part has options, please click the button below to order.
860-235-4712 Big Block Chevy Dart or Big Chief 7/17" undercut (12 pt nuts) - Pro Series Studs
High Performance head bolts are available with a
reduced wrenching hex or 12-point and wide area flanged head
that eliminates the need for valve train removal to
facilitate cylinder head re-torquing. All High Performance Series
bolts are 170,000 PSI (which is 15% stronger than Grade 8)
and kits come complete with hardened parallel-ground washers.
Premium grade 8740 alloy that is rated far superior to "aircraft" quality. Then, each stud is precisely heat-treated to 200,000 psi. ARP studs are thread rolled after heat-treat, which gives them about 1000% (that's ten times) better fatigue strength than those studs that are threaded prior to heat-treat (a very common industry practice). All kits come complete with hardened parallel-ground washers and high quality nuts. ARP offers specially undercut studs for several engines. This procedure (done only to the shorter studs) more equalizes the "stretch" of both studs, which makes for a more consistent clamping force and one that compensates for head gasket compression when the cylinder heads are installed. This helps prevent blown head gaskets, and assures optimum engine sealing!
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This Part has options, please click the button below to order.
860-235-4312 BBC Head Studs w/12-Point Nuts, Dart Big Chief
Exact tolerances ensure that gaskets and cylinder heads just glide into position and align perfectly. Head Studs include hex nuts and are manufactured by from premium 8740 chrome moly steel and heat treated to 190,000 psi. They are thread rolled after the heat treating process, which vastly improves their fatigue tolerance compared to studs threaded before heat treatment. High-quality, parallel ground washers included.
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This Part has options, please click the button below to order.
860-235-4503 Big Block Chevy Dart or Merlin Heads with undercut stems - Pro Series Studs
High Performance head bolts are available with a
reduced wrenching hex or 12-point and wide area flanged head
that eliminates the need for valve train removal to
facilitate cylinder head re-torquing. All High Performance Series
bolts are 170,000 PSI (which is 15% stronger than Grade 8)
and kits come complete with hardened parallel-ground washers.
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This Part has options, please click the button below to order.
860-135-3601 Big Block Chevy - HP Series Hex Bolts
High Performance head bolts are available with a
reduced wrenching hex or 12-point and wide area flanged head
that eliminates the need for valve train removal to
facilitate cylinder head re-torquing. All High Performance Series
bolts are 170,000 PSI (which is 15% stronger than Grade 8)
and kits come complete with hardened parallel-ground washers.
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This Part has options, please click the button below to order.
860-135-4001 Big Block Chevy - HP Series Studs
High Performance head bolts are available with a
reduced wrenching hex or 12-point and wide area flanged head
that eliminates the need for valve train removal to
facilitate cylinder head re-torquing. All High Performance Series
bolts are 170,000 PSI (which is 15% stronger than Grade 8)
and kits come complete with hardened parallel-ground washers.
Premium grade 8740 alloy that is rated far superior to "aircraft" quality. Then, each stud is precisely heat-treated to 200,000 psi. ARP studs are thread rolled after heat-treat, which gives them about 1000% (that's ten times) better fatigue strength than those studs that are threaded prior to heat-treat (a very common industry practice). All kits come complete with hardened parallel-ground washers and high quality nuts. ARP offers specially undercut studs for several engines. This procedure (done only to the shorter studs) more equalizes the "stretch" of both studs, which makes for a more consistent clamping force and one that compensates for head gasket compression when the cylinder heads are installed. This helps prevent blown head gaskets, and assures optimum engine sealing!
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This Part has options, please click the button below to order.
860-235-4103 ARP Head Studs w/Hex Nuts
- Big Block Chevy Late Bow Tie, Dart Merlin, Dart Iron and Aluminum 360, and Edelbrock Heads
Exact tolerances ensure that gaskets and cylinder heads just glide into position and align perfectly. ARP Head Studs include hex nuts and are manufactured by ARP from premium 8740 chrome moly steel and heat treated to 190,000 psi. They are thread rolled after the heat treating process, which vastly improves their fatigue tolerance compared to studs threaded before heat treatment. High-quality, parallel ground washers included.
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This Part has options, please click the button below to order.
860-135-3605 ARP Hi-Performance Head Bolt Kit
- Big Block Chevy with Dart Aluminum Heads (Exhaust Bolts only)
- Hex Head
HIGH PERFORMANCE SERIES
High Performance head bolts are available with a reduced wrenching hex and wide area flanged head that eliminates the need for valve train removal to facilitate cylinder head re-torquing. All High Performance Series bolts are 170,000 psi (which is 15% stronger than Grade 8) and kits come complete with hardened parallel-ground washers.
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This Part has options, please click the button below to order.
860-235-4401 Big Block Chevy w/undercut studs - Pro Series Studs
High Performance head bolts are available with a
reduced wrenching hex or 12-point and wide area flanged head
that eliminates the need for valve train removal to
facilitate cylinder head re-torquing. All High Performance Series
bolts are 170,000 PSI (which is 15% stronger than Grade 8)
and kits come complete with hardened parallel-ground washers.
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This Part has options, please click the button below to order.
860-235-3702 Big Block Chevy Brodix w/undercut - Pro Series 12-Pt. Bolts
High Performance head bolts are available with a
reduced wrenching hex or 12-point and wide area flanged head
that eliminates the need for valve train removal to
facilitate cylinder head re-torquing. All High Performance Series
bolts are 170,000 PSI (which is 15% stronger than Grade 8)
and kits come complete with hardened parallel-ground washers.
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This Part has options, please click the button below to order.
860-235-3703 Big Block Chevy Dart or Merlin Heads with undercut stems - Pro Series 12-Pt. Bolts
High Performance head bolts are available with a
reduced wrenching hex or 12-point and wide area flanged head
that eliminates the need for valve train removal to
facilitate cylinder head re-torquing. All High Performance Series
bolts are 170,000 PSI (which is 15% stronger than Grade 8)
and kits come complete with hardened parallel-ground washers.
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This Part has options, please click the button below to order.
860-135-3603 Big Block Chevy Cylinder Head Bolt Kit - Hex Head Style
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This Part has options, please click the button below to order.
860-135-3607 BBC Head Bolt Kit - Gen 5/6 Block w/Dart Head
- Big Block Chevy Mark-V Block with World Merlin, Late Bowtie and Dart Aluminum Heads
- Hex Head
HIGH PERFORMANCE SERIES
High Performance head bolts are available with a reduced wrenching hex and wide area flanged head that eliminates the need for valve train removal to facilitate cylinder head re-torquing. All High Performance Series bolts are 170,000 psi (which is 15% stronger than Grade 8) and kits come complete with hardened parallel-ground washers.
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