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Best Rocker Arm Nuts & Bolts - Buying Guide

Last Updated: 03/17/2019

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  #1

ARP 134-7124 1347124 High Performance Series Rocker Arm Studs - Set of 2

Model: 134-7124   |    Mpn: 1347124   |    Ean: 0672036002121   |    PartNumber: 1347124   |   Asin: B000CFU4RC

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. The solution? ARP quality. ARP rocker studs are concentric within .005 T.I.R. thread pitch to thread pitch. They run-in straight and true, and the extra-large radius base offers greater resistance to flex. Lengths are exact -- designed to provide positive seating every time. These High Performance series rocker arm studs are made of 8740 chrome moly forgings, heat-treated to 180,000 psi, and the tips are ground flush for optimum adjuster seating. ARP's patented Perma-Loc adjusters (available separately) should be used, not OEM-style self-locking nuts. 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. The dimensions for these studs are: 1.895 overall stud height, .710 screw-in thread depth, 1.000 adjuster thread depth, 3/8-24 shank diameter and thread, and 7/16-14 base diameter and thread.

Features

  • Manufactured to high tolerances so they run-in straight and true, and the extra-large radius base offers greater resistance to flex
  • Lengths are exact, designed to provide positive seating every time
  • Made from 8740 chrome moly forgings and heat treated to 180,000 psi; excellent for E.T. Bracket Racing, limited rule oval track competition, and street use
  • Stud dimensions are: 1.895 overall stud height, .710 screw-in thread depth, 1.000 adjuster thread depth, 3/8-24 shank diameter and thread, and 7/16-14 base diameter and thread
  • Designed for use with ARP's patented Perma-Loc adjusters, not OEM-style self-locking nuts
  • See more on Amazon...

Brand: ARP   |   Manufacturer: ARP

Package Dimensions: 0.9 x 3.9 x 5.9 inches (2.3 x 9.9 x 15.0 cm)

First Available: 2012-06-05

Amazon Price: $8.99 | as of 03/17/2019(7:34pm pst)
Availibility: Usually ships in 24 hours
List Price: $10.98

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  #2

ARP 135-7202 High Performance Series Black Oxide 7/16-14" Base Diameter 2.350" Stud Height Rocker Arm Stud Kit with Aluminum Head for Big Block Chevy

Model: 135-7202   |    Mpn: 135-7202   |    Ean: 0672036023492   |    PartNumber: 135-7202   |   Asin: B001T6HD7W

Chevy BB7/16 Aluminum applications, 7/16 head and 7/16 rockers, this set hasa shank portion under hex to locate guide plate. ARP Rocker Arm Studs 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 arm 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 ARPs patented Perma-Loc orShur-loc rocker arm nuts

Features

  • Description: BB Chevy w/aluminum heads rocker arm stud kit Pkg: kit Pkg Type: skin Material_1: 8740 chrome moly Finish_1: black oxide Material_2: N/A Finish_2: N/A Origin: USA Category: Cylinder Head Product Line: Rocker Arm Kit Type: Stud
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Brand: ARP   |   Manufacturer: ARP

Item Dimensions: 15 x 1 x 6 inches (38.1 x 2.5 x 15.2 cm)   |   Package Dimensions: 0.5 x 5.6 x 14.2 inches (1.3 x 14.2 x 36.1 cm)

First Available: 2012-06-04

Amazon Price: $72.99 | as of 03/17/2019(7:34pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $75.84

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  #3

ARP 134-7123 7/16" Rocker Arm Stud Kit - 2 Piece

Model: 134-7123   |    Mpn: ARP-134-7123   |    Ean: 0672036002114   |    PartNumber: ARP-134-7123   |   Asin: B004PLE6GE

Automotive Racing Products (ARP) started in 1968, in Southern California. Their product line includes everything from engine and driveline fasteners for OEM replacement parts to exotic specialty hardware for the Formula 1, Indycar, NASCAR, NHRA Drag Racing, and Marine Applications. They produce a number of specialty products like cylinder head fastener kits, connecting rod bolts, exhaust manifold/header fastener kits, oil pan fastener kits, piston ring compressors, and more.

Features

  • Description: SB Chevy rocker arm studs Pkg: 2 Pkg Type: skin Material_1: 8740 chrome moly Finish_1: black oxide Material_2: N/A Finish_2: N/A Origin: USA Category: Cylinder Head Product Line: Rocker Arm Kit Type: Stud
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Brand: ARP   |   Manufacturer: ARP

Package Dimensions: 0.63 x 3.86 x 5.75 inches (1.6 x 9.8 x 14.6 cm)

First Available: 2012-10-25

Amazon Price: $11.65 | as of 03/17/2019(7:34pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $11.65

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  #4

ARP 4001201 Header Stud & Bolt

Model: 400-1201   |    Mpn: 4001201   |    Ean: 0672036013219   |    PartNumber: 4001201   |   Asin: B000CFS4SS

Chevy Small Block, 3/8 diameter bolt, 3/8 wrench, 12 pack, 3/8 Size, .750 Under Head Length, 12-point head, Stainless 300, ARP Header Bolts 400-1201ARP Header Bolts Header Studs ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12-point nuts.ARP Header Bolts Header Studsthat areStainless 300 material arenot affected by corrosion or extreme heat, makingit ideal for the application. Whats more, the compact 12-point nut lets you easily slip a socket close to the pipe!Each ARP accessory stud or bolt kit includes the specific number of parts for your application, plus premium-quality washers and hex or 12-point nuts, as required. Studs are manufactured with a unique nut-starter nose that helps prevent cross-threading.ARP Header Bolts Header Studscome either black oxide chrome moly or Stainless 300. Both are nominally rated at 170,000 psi tensile strength; substantially stronger than Grade 8 hardware. Specially drilled NASCAR models are available for those who wish to safety wire their header bolts to Special NASCAR model prevent loosening.Studs are measured OAL (Over All Length) and Bolts are measured UHL (Under Head Length)

Features

Brand: ARP   |   Manufacturer: ARP

Item Dimensions: 0.7 x 4.7 x 7.3 inches (1.8 x 11.9 x 18.5 cm)   |   Package Dimensions: 0.79 x 4.72 x 7.28 inches (2.0 x 12.0 x 18.5 cm)

First Available: 2012-06-05

Amazon Price: $19.99 | as of 03/17/2019(7:34pm pst)
Availibility: Usually ships in 24 hours
List Price: $21.81

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  #5

ARP 3347202 Pro Series Black Oxide Moly Steel Rocker Arm Stud Kit

Model: 334-7202   |    Mpn: 3347202   |    Ean: 0672036012823   |    PartNumber: 3347202   |   Asin: B000CFU8R8

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. The solution? ARP quality. ARP rocker studs are concentric within .005 T.I.R. thread pitch to thread pitch. They run-in straight and true, and the extra-large radius base offers greater resistance to flex. Lengths are exact -- designed to provide positive seating every time. These Pro series rocker arm studs are from premium grade 8740 chrome moly steel and heat-treated to a tensile strength of 200,000 psi. ARP's patented Perma-Loc adjusters (available separately) should be used, not OEM-style self-locking nuts. 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. The dimensions for these studs are: 2.100 overall stud height, .850 screw-in thread depth, .800 adjuster thread depth, 7/16-20 shank diameter and thread, and 7/16-14 base diameter and thread.

Features

  • Manufactured to high tolerances so they run-in straight and true, and the extra-large radius base offers greater resistance to flex
  • Lengths are exact, designed to provide positive seating every time
  • Made from premium grade 8740 chrome moly steel and heat-treated to a tensile strength of 200,000 psi; designed for competition applications
  • Stud dimensions are: 2.100 overall stud height, .850 screw-in thread depth, .800 adjuster thread depth, 7/16-20 shank diameter and thread, and 7/16-14 base diameter and thread
  • Designed for use with ARP's patented Perma-Loc adjusters, not OEM-style self-locking nuts
  • See more on Amazon...

Brand: ARP   |   Manufacturer: ARP

Item Dimensions: 15 x 1 x 6 inches (38.1 x 2.5 x 15.2 cm)   |   Package Dimensions: 0.2 x 5.4 x 14.2 inches (0.5 x 13.7 x 36.1 cm)

First Available: 2012-06-05

Amazon Price: $105.99 | as of 03/17/2019(7:34pm pst)
Availibility: Usually ships in 24 hours
List Price: $105.99

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  #6

ARP 1347104 High Performance Series Rocker Arm Stud Kit

Model: 1347104   |    Mpn: 1347104   |    Ean: 0672036002091   |    PartNumber: 1347104   |   Asin: B000CFO0PY

Chevy SB and Ford SB,Fits most stockwith 3/8 roller rockers, 7/16 head and 3/8 rockers. ARP Rocker Arm Studs 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 arm 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 ARPs patented Perma-Loc orShur-loc rocker arm nuts

Features

  • 3/8 Inch Shank Diameter - 24 Thread Size
  • 1.895 Inch Overall Stud Length
  • Set of 16
  • 180000 PSI Tensile Strength
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Brand: ARP   |   Manufacturer: ARP

Item Dimensions: 0.8 x 5.8 x 14.5 inches (2.0 x 14.7 x 36.8 cm)   |   Package Dimensions: 5 x 5.6 x 14.1 inches (12.7 x 14.2 x 35.8 cm)

First Available: 2012-06-05

Amazon Price: $42.99 | as of 03/17/2019(7:34pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $49.13

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  #7

ARP 3008245 Perma-Loc Rocker Arm Adjuster - Pack of 16

Model: 3008245   |    Mpn: 3008245   |    Ean: 0672036012090   |    PartNumber: 3008245   |   Asin: B000CFU8KA

One of the more aggravating things found in many high performance engines is constantly having to re-adjust rocker arms. Until ARP introduced the patented Perma-Loc rocker arm adjuster, there wasn't a "poly lock" on the market that you didn't have to continually tighten. There are several important reasons why ARP's exclusive Perma-Loc rocker arm adjusters won't loosen like others. First, the adjuster body is heat treated all the way through (not simply case hardened), which eliminates the thread "movement" common to others. Secondly, the threads are machined exactly perpendicular to he bottom of the adjuster, so it seats evenly and applies pressure on a full 360 degree circle. Lastly, the set screw is machined flush on the bottom, not pointed, so it will have optimum contact on the rocker arm stud. Perma-Loc adjusters are also easy to use, because the compact 12-point head is designed to hold your wrench in position while you lock the set screw with an Allen wrench.

Features

  • Exclusive 12-point head, with special shouldered "stop" to hold the wrench, eliminates the need for special adjusting tools
  • Forged in-house from grade A 8740 alloy chrome moly steel and heat-treated throughout for a 190,000 psi tensile strength, not simply case hardened like others are
  • Threads are precision CNC-machined exactly perpendicular to the bottom of adjuster to ensure an optimum seat, even pressure, and maximum engagement
  • Bottom is flush-ground perpendicular to the threads, so it seats evenly, and the set screw has flush-machined tip for optimum contact and seating on stud
  • Designed for aluminum rockers, and features an overall length of 1.200, a thread size of 7/16 - 20, and a body diameter of .550; sixteen adjusters per package
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Brand: ARP   |   Manufacturer: ARP

Item Dimensions: 10 x 1 x 6 inches (25.4 x 2.5 x 15.2 cm)   |   Package Dimensions: 0.5 x 5.6 x 9.2 inches (1.3 x 14.2 x 23.4 cm)

First Available: 2012-06-05

Amazon Price: $69.99 | as of 03/17/2019(7:34pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $70.44

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  #8

Crane 99771-16 Steel Rocker Arm Self-Locking Adjusting Nut - Pack of 16

Model: 99771-16   |    Mpn: 9977116   |    Ean: 0021174007978   |    PartNumber: 9977116   |   Asin: B000CC9ANE

The Crane Steel Rocker Arm Self-Locking Adjusting Nuts are designed for the ultimate in strength and locking force. It is available in self-locking standard configuration. This rocker arm adjusting nut directs the pressure-fed oil flow to the pivot ball-rocker arm interface, resulting in superior lubrication and cooling in this critical area.

Features

  • Designed for the ultimate in strength and locking force
  • Diameter of the stud and thread is 7/16-20
  • Available in self-locking standard configuration
  • Rocker arm is stamped steel and rocker arm nut is self-locking
  • Backed by Crane's 1 year Warranty Policy under normal use
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Brand: Crane Cams   |   Manufacturer: Crane Cams

Item Dimensions: 0.5 x 5 x 7.5 inches (1.3 x 12.7 x 19.1 cm)   |   Package Dimensions: 3.3 x 4 x 10 inches (8.4 x 10.2 x 25.4 cm)

First Available: 2005-11-15

Amazon Price: $22.62 | as of 03/17/2019(7:34pm pst)
Availibility: Usually ships in 24 hours
List Price: $22.62

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  #9

ARP 1007121 High Performance Series Rocker Arm Stud Kit - Pack of 2

Model: 100-7121   |    Mpn: 1007121   |    Ean: 0672036000288   |    PartNumber: 1007121   |   Asin: B000CFS08C

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. The solution? ARP quality. ARP rocker studs are concentric within .005 T.I.R. thread pitch to thread pitch. They run-in straight and true, and the extra-large radius base offers greater resistance to flex. Lengths are exact -- designed to provide positive seating every time. These High Performance series rocker arm studs are made of 8740 chrome moly forgings, heat-treated to 180,000 psi, and the tips are ground flush for optimum adjuster seating. ARP's patented Perma-Loc adjusters (available separately) should be used, not OEM-style self-locking nuts. 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. The dimensions for these studs are: 1.900 overall stud height, .750 screw-in thread depth, 1.000 adjuster thread depth, 7/16-20 shank diameter and thread, and 7/16-14 base diameter and thread.

Features

  • Manufactured to high tolerances so they run-in straight and true, and the extra-large radius base offers greater resistance to flex
  • Lengths are exact, designed to provide positive seating every time
  • Made from 8740 chrome moly forgings and heat treated to 180,000 psi; excellent for E.T. Bracket Racing, limited rule oval track competition, and street use
  • Stud dimensions are: 1.900 overall stud height, .750 screw-in thread depth, 1.000 adjuster thread depth, 7/16-20 shank diameter and thread, and 7/16-14 base diameter and thread
  • Designed for use with ARP's patented Perma-Loc adjusters, not OEM-style self-locking nuts
  • See more on Amazon...

Brand: ARP   |   Manufacturer: ARP

Item Dimensions: 0.75 x 4 x 6 inches (1.9 x 10.2 x 15.2 cm)   |   Package Dimensions: 0.9 x 3.6 x 6 inches (2.3 x 9.1 x 15.2 cm)

First Available: 2012-06-05

Amazon Price: $15.01 | as of 03/17/2019(7:34pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $10.56

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  #10

Mr. Gasket 924G Sure-Lock Rocker Arm Nut

Model: 924G   |    Mpn: 924G   |    Ean: 0084041009246   |    PartNumber: 924G   |   Asin: B000CMF25O

Mr. Gasket Sure-Lock Rocker Arm Nuts are designed to keep the rocker arm locked for adjustment. They are made from high quality steel which ensures extreme durability. These nuts are heat treated and dichromate plated. They are corrosion resistant and are backed by a limited warranty.

Features

  • Designed to keep the rocker arm locked for adjustment
  • Made from high quality steel
  • Heat treated
  • Dichromate plated
  • Backed by a limited warranty
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Brand: Mr. Gasket   |   Manufacturer: Mr Gasket

Package Dimensions: 0.5 x 7.8 x 9.7 inches (1.3 x 19.8 x 24.6 cm)

Amazon Price: $63.03 | as of 03/17/2019(7:34pm pst)
Availibility: Usually ships in 24 hours
List Price: $63.13

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  #11

ARP 100-7201 Rocker Arm Stud Kit - 16 Piece

Model: 100-7201   |    Mpn: ARP-100-7201   |    Ean: 0672036029357   |    PartNumber: ARP-100-7201   |   Asin: B001T6EJE2

Chevrolet late model Vortec3/8-24 for rocker amrs and M10 - 1.5 thd in head. ARP Rocker Arm Studs 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 arm 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 ARPs patented Perma-Loc orShur-loc rocker arm nuts

Features

  • Description: GM 90? V6 rocker arm stud kit Pkg: kit Pkg Type: skin Material_1: 8740 chrome moly Finish_1: black oxide Material_2: N/A Finish_2: N/A Origin: USA Category: Cylinder Head Product Line: Rocker Arm Kit Type: Stud
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Brand: ARP   |   Manufacturer: ARP

Package Dimensions: 0.6 x 5.6 x 14.5 inches (1.5 x 14.2 x 36.8 cm)

First Available: 2012-10-25

Amazon Price: $50.99 | as of 03/17/2019(7:34pm pst)
Availibility: Usually ships in 24 hours
List Price: $60.98

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  #12

ARP 4001109 Hex Headr Bolt Kt

Model: 400-1109   |    Mpn: 4001109   |    Ean: 0672036013196   |    PartNumber: 4001109   |   Asin: B000CFS4QU

Universal Bolt kit, 5/16" wrench, 12 pack, 3/8" Size, 1.000" Under Head Length, Hex head, Stainless 300, ARP Header Bolts 400-1109 ARP Header Bolts & Header Studs that are Universal. ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12-point nuts. ARP Header Bolts & Header Studs that are Stainless 300 material are not affected by corrosion or extreme heat, making it ideal for the application. What s more, the compact 12-point nut lets you easily slip a socket close to the pipe!

Each ARP accessory stud or bolt kit includes the specific number of parts for your application, plus premium-quality washers and hex or 12-point nuts, as required. Studs are manufactured with a unique nut-starter nose that helps prevent cross-threading.

ARP Header Bolts & Header Studs come either black oxide chrome moly or Stainless 300. Both are nominally rated at 170,000 psi tensile strength; substantially stronger than Grade 8 hardware. Specially drilled NASCAR models are available for those who wish to safety wire their header bolts to Special NASCAR model prevent loosening.

Studs are measured OAL (Over All Length) and Bolts are measured UHL (Under Head Length)

Features

Brand: ARP   |   Manufacturer: ARP

Package Dimensions: 0.5 x 3.7 x 7 inches (1.3 x 9.4 x 17.8 cm)

First Available: 2012-06-05

Amazon Price: $31.99 | as of 03/17/2019(7:34pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $34.38

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  #13

ARP 1347121 High Performance Series Rocker Arm Studs - Set of 2

Model: 134-7121   |    Mpn: 1347121   |    Ean: 0672036002107   |    PartNumber: 1347121   |   Asin: B000CFU4R2

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. The solution? ARP quality. ARP rocker studs are concentric within .005 T.I.R. thread pitch to thread pitch. They run-in straight and true, and the extra-large radius base offers greater resistance to flex. Lengths are exact -- designed to provide positive seating every time. These High Performance series rocker arm studs are made of 8740 chrome moly forgings, heat-treated to 180,000 psi, and the tips are ground flush for optimum adjuster seating. ARP's patented Perma-Loc adjusters (available separately) should be used, not OEM-style self-locking nuts. 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. The dimensions for these studs are: 1.750 overall stud height, .700 screw-in thread depth, .800 adjuster thread depth, 3/8-24 shank diameter and thread, and 7/16-14 base diameter and thread.

Features

  • Manufactured to high tolerances so they run-in straight and true, and the extra-large radius base offers greater resistance to flex
  • Lengths are exact, designed to provide positive seating every time
  • Made from 8740 chrome moly forgings and heat treated to 180,000 psi; excellent for E.T. Bracket Racing, limited rule oval track competition, and street use
  • Stud dimensions are: 1.750 overall stud height, .700 screw-in thread depth, .800 adjuster thread depth, 3/8-24 shank diameter and thread, and 7/16-14 base diameter and thread
  • Designed for use with ARP's patented Perma-Loc adjusters, not OEM-style self-locking nuts
  • See more on Amazon...

Brand: ARP   |   Manufacturer: ARP

Package Dimensions: 0.9 x 4 x 6 inches (2.3 x 10.2 x 15.2 cm)

First Available: 2012-06-05

Amazon Price: $8.99 | as of 03/17/2019(7:34pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $11.65

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  #14

COMP Cams 4009 7/16" Diameter Solid Bar Design Stud Girdle for Small Block Chevrolet

Model: 4009   |    Mpn: 4009   |    Ean: 0036584380191   |    PartNumber: 4009   |   Asin: B000CIO9EI

COMP Cams the stud girdles are made of 6061-T6 aluminum for light weight and anodized for durability. They are a one-piece, solid bar design to tie the studs together as well as properly locate them.

Features

  • For Small Block Chevrolet applications with 7/16 inches studs
  • Solid bar, one-piece design ties studs together and properly locates them
  • Constructed of 6061-T6 aluminum for light weight and anodized for durability
  • Kits come complete with hex head adjusting nuts, interlocking set screws and all hardware
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Brand: Comp Cams   |   Manufacturer: COMP Cams

Item Dimensions: 3 x 5 x 26 inches (7.6 x 12.7 x 66.0 cm)   |   Package Dimensions: 2.76 x 5.59 x 25.91 inches (7.0 x 14.2 x 65.8 cm)

First Available: 2012-04-27

Amazon Price: $204.88 | as of 03/17/2019(7:34pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $243.86

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  #15

ARP 1357101 High Performance Rocker Arm Stud Kit

Model: 1357101   |    Mpn: 1357101   |    Ean: 0672036002596   |    PartNumber: 1357101   |   Asin: B000CFS0QO

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. HIGH PERFORMANCE SERIES Made of 8740 chrome moly forgings and heat-treated to 180,000 psi. Excellent for E.T. Bracket Racing, limited rule oval trackcompetition and street use. Tip ground flush for optimum adjuster seatin. PRO SERIES Designed for competition applications, ARP's Pro Series rocker arm studs are made of premium grade 8740 chrome moly steel and heat-treated to a tensile strength of 200,000 psi. 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. Rocker Arm Studs High Performance Series Shank Under Hex to Locate Guide Plate Adjuster Thread Depth 0.85 Base Dia/Thread 7/16-14 Screw-In Thread Depth 0.8 Shank Dia/Thread 7/16-20 Stud Height 1.75

Features

Brand: ARP   |   Manufacturer: ARP

Package Dimensions: 0.2 x 6 x 14.1 inches (0.5 x 15.2 x 35.8 cm)

First Available: 2012-06-05

Amazon Price: $44.99 | as of 03/17/2019(7:34pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $48.99 | Used Price: $40.85

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  #16

ARP 134-7201 3/8" Rocker Arm Stud Kit - 16 Piece

Model: 134-7201   |    Mpn: ARP-134-7201   |    Ean: 0672036031060   |    PartNumber: ARP-134-7201   |   Asin: B001T6HCYG

Chevy late model Vortec V8. ARP 134-7201 Rocker Arm Studs. 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 arm 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 ARPs patented Perma-Loc orShur-loc rocker arm nuts

Features

  • Description: SB Chevy late model Vortec rocker arm stud kit Pkg: kit Pkg Type: skin Material_1: 8740 chrome moly Finish_1: black oxide Material_2: N/A Finish_2: N/A Origin: USA Category: Cylinder Head Product Line: Rocker Arm Kit Type: Stud
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Brand: ARP   |   Manufacturer: ARP

Item Dimensions: 15 x 1 x 6 inches (38.1 x 2.5 x 15.2 cm)   |   Package Dimensions: 0.31 x 5.71 x 14.49 inches (0.8 x 14.5 x 36.8 cm)

First Available: 2012-10-25

Amazon Price: $91.16 | as of 03/17/2019(7:34pm pst)
Availibility: Usually ships in 24 hours
List Price: $91.98

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  #17

Crane 99802-16 Shaft Rocker Arm Adjusting Screw - Pack of 16

Model: 99802-16   |    Mpn: 9980216   |    Ean: 0021174008142   |    PartNumber: 9980216   |   Asin: B000CC9ANY

The Crane Shaft Rocker Arm Adjusting Screws are precision machined from premium steel billet material and selectively heat treated to provide maximum strength. These rocker arm pushrod adjusting screws are designed to thread into your rocker arm. They are made of billet steel and feature a black oxide finish for maximum durability. These screws are extremely lightweight and drilled for oiling when necessary.

Features

  • Features ball cup for 5/16 pushrod
  • Designed to thread into your rocker arm
  • Stud and thread diameter of 3/8-24
  • Backed by Crane's 1 year Warranty Policy under normal use
  • Extremely lightweight and drilled for oiling when necessary
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Brand: Crane Cams   |   Manufacturer: Crane Cams

Item Dimensions: 1.5 x 1.9 x 7.9 inches (3.8 x 4.8 x 20.1 cm)   |   Package Dimensions: 2.28 x 2.28 x 8.27 inches (5.8 x 5.8 x 21.0 cm)

First Available: 2005-11-15

Amazon Price: $44.48 | as of 03/17/2019(7:34pm pst)
Availibility: Usually ships in 24 hours
List Price: $48.62

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  #18

ARP 290-7201 Rocker Arm Stud Kit

Model: 290-7201   |    Mpn: 290-7201   |    Ean: 0672036011666   |    PartNumber: 290-7201   |   Asin: B001T6CRDC

Old style heads with 7/16-20 and 1/2 coarse threadin the head Pro Series,ARP Rocker Arm Studs 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 arm 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 ARPs patented Perma-Loc orShur-loc rocker arm nuts

Brand: ARP   |   Manufacturer: ARP

Package Dimensions: 1 x 5.7 x 14.3 inches (2.5 x 14.5 x 36.3 cm)

First Available: 2012-10-25

Amazon Price: $83.99 | as of 03/17/2019(7:34pm pst)
Availibility: Usually ships in 24 hours
List Price: $94.62

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  #19

Mr. Gasket 923G Sure-Lock Rocker Arm Nut

Model: 923G   |    Mpn: 923G   |    Ean: 0084041009239   |    PartNumber: 923G   |   Asin: B000CMH1QC

Mr. Gasket Sure-Lock Rocker Arm Nuts are designed to keep the rocker arm locked for adjustment. They are made from high quality steel which ensures extreme durability. These nuts are heat treated and dichromate plated. They are corrosion resistant and are backed by a limited warranty.

Features

  • Designed to keep the rocker arm locked for adjustment
  • Made from high quality steel
  • Heat treated
  • Dichromate plated
  • Backed by a limited warranty
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Brand: Mr. Gasket   |   Manufacturer: Mr Gasket

Package Dimensions: 0.4 x 7.5 x 9.1 inches (1.0 x 19.1 x 23.1 cm)

Amazon Price: $57.59 | as of 03/17/2019(7:34pm pst)
Availibility: Usually ships in 24 hours
List Price: $57.59

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  #20

Crane Cams 99769-16 Rocker Arm Adjusting Nut, (Set of 16)

Model: 99769-16   |    Mpn: 99769-16   |    Ean: 0021174007923   |    PartNumber: 99769-16   |   Asin: B000CCFYM0

Crane Cams Rocker Arm Adjusting Nut, (Set of 16) features heat treated steel billet rocker arm adjusting nuts for use with Crane rocker arms. They incorporate a locking set screw to maintain adjustments to insure and maintain proper valve preload, or lash.

Features

Brand: Crane Cams   |   Manufacturer: Crane Cams

Item Dimensions: 2.9 x 2.4 x 8.2 inches (7.4 x 6.1 x 20.8 cm)   |   Package Dimensions: 2.3 x 2.4 x 8.2 inches (5.8 x 6.1 x 20.8 cm)

First Available: 2011-11-04

Amazon Price: $102.13 | as of 03/17/2019(7:34pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $66.78

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  #21

Crane 99810-2 Rocker Arm VTS Bar Adjusting Nut with Stud Girdle - Pack of 2

Model: 99810-2   |    Mpn: 998102   |    Ean: 0021174008272   |    PartNumber: 998102   |   Asin: B000CCDMCE

The Crane Adjusting Nuts are specifically designed for your VTS bar (stud girdle) in applications with Crane's roller tip, needle-bearing aluminium rocker arms. They feature high quality metal bar stock, which is precision-machined and heat-treated for maximum strength and durability. Each Crane locknut comes complete with an Allen-head set screw for positive jam nut operation.

Features

  • Designed for VTS bar (stud girdle)
  • Overall height 2.013
  • Stud diameter and thread is 7/16-20
  • Minimum rocker slot width is 0.600
  • Comes with an Allen-head set screw for positive jam nut operation
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Brand: Crane Cams   |   Manufacturer: Crane Cams

Package Dimensions: 1.87 x 4.75 x 8.79 inches (4.7 x 12.1 x 22.3 cm)

First Available: 2005-11-15

Amazon Price: $17.30 | as of 03/17/2019(7:34pm pst)
Availibility: Usually ships in 24 hours
List Price: $17.30

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  #22

Crane 99780-16 Shaft-Type Rocker Arm Adjusting Screws - 16 Per Set

Model: 99780-16   |    Mpn: 9978016   |    Ean: 0021174044225   |    PartNumber: 9978016   |   Asin: B000CIS0TS

The Crane Shaft-Type Rocker Arm Adjusting Screws have 3/8"-24 stud diameter and thread with ball/cup having 3/8" diameter. They are precision machined from premium steel billet material and selectively heat treated to provide maximum strength. These screws are extremely light weight and drilled for oiling when necessary.

Features

  • Precision machined from premium steel billet material
  • Selectively heat treated to provide maximum strength
  • Extremely light weight
  • Drilled for oiling when necessary
  • Comes with 3/8-24 stud diameter and thread with ball/cup having 3/8 diameter
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Brand: Crane Cams   |   Manufacturer: Crane Cams

Item Dimensions: 1.7 x 2.2 x 7.8 inches (4.3 x 5.6 x 19.8 cm)   |   Package Dimensions: 2.05 x 2.76 x 7.95 inches (5.2 x 7.0 x 20.2 cm)

Amazon Price: $37.46 | as of 03/17/2019(7:34pm pst)
Availibility: Usually ships in 24 hours
List Price: $38.71

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