860-200-7601 Stamped steel valve cover stud kit
- 6-point (Hex) Head
- 1/4" - 20 Thread
- 1.170" OAL (stud overall length)
- For Stamped Steel Covers
To ensure proper sealing of valve covers, manufactures a variety of special application-specific bolt and stud kits. Many professional engine builders prefer to use studs because of their ability to properly position the gasket and guide the cover into position. offers studs and bolts in a choice of chrome moly steel with a black oxide finish or stainless steel. You have a choice between conventional hex (6-point) head bolts and nuts or compact, easy access 12-point designs. The nuts feature a wide base for better load distribution and sealing, while the compact head is easily accessed. Stud kits come complete with nuts and washers, while bolt kits are shipped with the required flat washers.
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860-200-7602 Stamped steel valve cover stud kit
- 6-point (Hex) Head
- 1/4" - 20 Thread
- 1.170" OAL (stud overall length)
- Black Oxide
- For Stamped Steel Covers
To ensure proper sealing of valve covers, manufactures a variety of special application-specific bolt and stud kits. Many professional engine builders prefer to use studs because of their ability to properly position the gasket and guide the cover into position. offers studs and bolts in a choice of chrome moly steel with a black oxide finish or stainless steel. You have a choice between conventional hex (6-point) head bolts and nuts or compact, easy access 12-point designs. The nuts feature a wide base for better load distribution and sealing, while the compact head is easily accessed. Stud kits come complete with nuts and washers, while bolt kits are shipped with the required flat washers.
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860-100-9910 ARP Ultra Torque lube 10 oz.
Features:
- Eliminates preload scatter
- Remains consistent on every cycle
- Resists fastener loosening
- Saves Time - no need to re-torque 6+ times
- Maintains consistent clamping force
- An absolute "must" for any serious engine builder
Gets you within 5% of the required pre-load on the first pull and stays consistent with each subsequent cycle-race prep, machining, pre-assembly and final assembly. Premium grade moly base with rust and corrosion inhibitors. Effective lubrication range -30° to 550°F, with a load range of 500,000 psi.
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860-140-5001 Mopar 2-bolt main cap bolt kit
main bolt kits offer only the finest quality. Popular applications feature reduced wrenching head and wide area flange to provide even load distribution during torquing. 170,000 psi tensile strength.
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860-200-2404 2" spacer, 5/16" diameter, 4 pieces
The best way to make sure that carburetors stay
perfectly sealed to the intake manifold is through the use of
ARP's carburetor studs, which features J-form threads to resist
loosening from vibration. They're offered in a variety of heights
to accommodate most any combination of carburetor and spacer.
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860-100-0601 Aluminum Blower Studs, 7/16" Diameter, 2.880" OAL Kit
Engineered to minimize damage to either manifold or blower housing during
unexpected blower explosions, these break-away blower studs are designed to
allow separation of manifold and blower. Use of these special studs could save
you thousands of dollars! Manufactured from premium-quality aluminum and heat
treated to provide the optimum balance between keeping the supercharger in place
and breaking under a predetermined amount of force. Kit comes complete with
aerospace quality nuts. Aluminum studs are anodized.
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860-135-5402 Big Block Chevy 2 bolt w/windage tray - HP Series Studs
There are many important reasons to use ARP main stud kits, including the elimination
of main cap walk and fretting, as well as protecting the threads in your engine block.
The studs are manufactured in our own factory using the best materials, processes,
designs and engineering. Every ARP main stud kit exceeds the most stringent aerospace
specifications. All kits come complete with hardened parallel-ground washers and
aerospace quality nuts. Some applications have provisions for mounting windage trays and
have specially designed standoff studs with serrated lock nuts to position the windage tray
and lock it securely in place. The studs are manufactured from 8740 chrome moly steel,
heat-treated in-house to 190,000 PSI tensile strength, and precision J-form threads rolled
after heat-treat to create a fastener that has threads 1000% stronger than others. Don't
settle for anything less than the best. Insist on genuine ARP studs . . . you'll find the
name stamped right on the end!
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860-235-5502 Big Block Chevy 2 bolt w/windage tray - Professional Series Studs
There are many important reasons to use ARP main stud kits, including the elimination
of main cap walk and fretting, as well as protecting the threads in your engine block.
The studs are manufactured in our own factory using the best materials, processes,
designs and engineering. Every ARP main stud kit exceeds the most stringent aerospace
specifications. All kits come complete with hardened parallel-ground washers and
aerospace quality nuts. Some applications have provisions for mounting windage trays and
have specially designed standoff studs with serrated lock nuts to position the windage tray
and lock it securely in place. The studs are manufactured from 8740 chrome moly steel,
heat-treated in-house to 190,000 PSI tensile strength, and precision J-form threads rolled
after heat-treat to create a fastener that has threads 1000% stronger than others. Don't
settle for anything less than the best. Insist on genuine ARP studs . . . you'll find the
name stamped right on the end!
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860-135-5201 Big Block Chevy 4 bolt - HP Series Hex Bolts
There are many important reasons to use ARP main stud kits, including the elimination
of main cap walk and fretting, as well as protecting the threads in your engine block.
The studs are manufactured in our own factory using the best materials, processes,
designs and engineering. Every ARP main stud kit exceeds the most stringent aerospace
specifications. All kits come complete with hardened parallel-ground washers and
aerospace quality nuts. Some applications have provisions for mounting windage trays and
have specially designed standoff studs with serrated lock nuts to position the windage tray
and lock it securely in place. The studs are manufactured from 8740 chrome moly steel,
heat-treated in-house to 190,000 PSI tensile strength, and precision J-form threads rolled
after heat-treat to create a fastener that has threads 1000% stronger than others. Don't
settle for anything less than the best. Insist on genuine ARP studs . . . you'll find the
name stamped right on the end!
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860-135-5601 Big Block Chevy 4 bolt - HP Series Studs
There are many important reasons to use ARP main stud kits, including the elimination
of main cap walk and fretting, as well as protecting the threads in your engine block.
The studs are manufactured in our own factory using the best materials, processes,
designs and engineering. Every ARP main stud kit exceeds the most stringent aerospace
specifications. All kits come complete with hardened parallel-ground washers and
aerospace quality nuts. Some applications have provisions for mounting windage trays and
have specially designed standoff studs with serrated lock nuts to position the windage tray
and lock it securely in place. The studs are manufactured from 8740 chrome moly steel,
heat-treated in-house to 190,000 PSI tensile strength, and precision J-form threads rolled
after heat-treat to create a fastener that has threads 1000% stronger than others. Don't
settle for anything less than the best. Insist on genuine ARP studs . . . you'll find the
name stamped right on the end!
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860-235-5701 Big Block Chevy 4 bolt w/windage tray - Professional Series Studs
There are many important reasons to use ARP main stud kits, including the elimination
of main cap walk and fretting, as well as protecting the threads in your engine block.
The studs are manufactured in our own factory using the best materials, processes,
designs and engineering. Every ARP main stud kit exceeds the most stringent aerospace
specifications. All kits come complete with hardened parallel-ground washers and
aerospace quality nuts. Some applications have provisions for mounting windage trays and
have specially designed standoff studs with serrated lock nuts to position the windage tray
and lock it securely in place. The studs are manufactured from 8740 chrome moly steel,
heat-treated in-house to 190,000 PSI tensile strength, and precision J-form threads rolled
after heat-treat to create a fastener that has threads 1000% stronger than others. Don't
settle for anything less than the best. Insist on genuine ARP studs . . . you'll find the
name stamped right on the end!
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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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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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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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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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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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860-135-7102 ARP Rocker Arm Studs, Mark V, Gen 5/6
If you have ever installed a rocker stud into a cylinder head and watched it wobble as it screwed in - you knew from the beginning that the rocker geometry was going to be inconsistent all over the place. ARP rocker studs are concentric within .005 T.I.R. thread pitch to thread pitch. They run-in straight and true. Lengths are exact - designed to provide positive seating every time. An extra-large radius base offers greater resistance to flex. Available in both High Performance and Pro Series models.
NOTE: Not to be used with OEM-style, self-locking nuts. To be used with ARP's patented Perma-Loc adjusters
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860-235-7202 ARP Rocker Arm Studs, Dart aluminum heads (16 pieces)
If you have ever installed a rocker stud into a cylinder head and watched it wobble as it screwed in - you knew from the beginning that the rocker geometry was going to be inconsistent all over the place. ARP rocker studs are concentric within .005 T.I.R. thread pitch to thread pitch. They run-in straight and true. Lengths are exact - designed to provide positive seating every time. An extra-large radius base offers greater resistance to flex. Available in both High Performance and Pro Series models.
NOTE: Not to be used with OEM-style, self-locking nuts. To be used with ARP's patented Perma-Loc adjusters
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860-235-7201 Big Block Chevy with guide plates- Professional Series
ARP High Performance and Professional Series Rocker Arm Studs offer improved
reliability through longer thread engagement in the cylinder head and an extra
large radius for reduced flex. Special applications have been designed for
aftermarket heads to assure proper fit. High Performance Series are rated at
170,000 PSI while Professional Series are rated at 190,000 PSI.
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860-235-7203 BB Chevy rocker arm stud kit Aluminum head (8pcs)
If you have ever installed a rocker stud into a cylinder head and watched it wobble as it screwed in - you knew from the beginning that the rocker geometry was going to be inconsistent all over the place. rocker studs are concentric within .005 T.I.R. thread pitch to thread pitch. They run-in straight and true. Lengths are exact - designed to provide positive seating every time. An extra-large radius base offers greater resistance to flex. Available in both High Performance and Pro Series models.
NOTE: Not to be used with OEM-style, self-locking nuts. To be used with 's patented Perma-Loc adjusters
IMPORTANT TECH NOTE
It is highly advisable to determine what the optimum rocker arm stud length is for your particular application. This is especially true when "long" pushrods and valves are employed - you should raise the "installed height" of the rocker arm to compensate for the longer-than-stock components.
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