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ARP High Performance Rocker Arm Studs Moly

(Chevrolet Camaro 1967-72, Corvette 1965-74, 2006-07, Tahoe 1996-99, Impala 1963, 1965-76, Malibu 1966-67, 1973-75, C1500 1990-93, 1996-99 + 51 more models)

Manufacturer

Part Number

14 part numbers · from $9.20
Sale Price

from $9.20

In Stock (10+)

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Usually delivered within 2 days

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Product Details

ARP High Performance Rocker Arm Studs in moly are made for engines that need a stronger, more reliable rocker arm mounting than factory bolts or studs can give. These rocker arm studs (also called rocker studs or rocker arm bolts) suit street performance, racing and high-RPM builds. They help keep valvetrain geometry stable under high spring pressure and aggressive cam profiles.

Key Features:

  • High-strength alloy construction: ARP builds its studs from premium alloy steel for high tensile strength and fatigue resistance.
  • Moly assembly lube compatibility: These studs are intended to be installed with moly-based lubricant, which supports accurate torque readings and consistent clamping load.
  • Precision-rolled threads: Threads are rolled after heat treatment, which improves fatigue life and gives smooth, consistent installation.
  • Strict quality control: ARP manufactures its fasteners in the USA, with tight tolerances and thorough inspection.
  • Better valvetrain stability: A stronger stud helps resist stretching and flex, which supports consistent valve timing and lift at high RPM.

ARP is a leading maker of high-performance fasteners, and its parts are used in racing, performance and heavy-duty applications. Choose the correct variant for your engine and follow ARP's installation and torque instructions for best results.

Products specifications

Fits

Chevrolet Camaro 1967-72, Corvette 1965-74, 2006-07, Tahoe 1996-99, Impala 1963, 1965-76, Malibu 1966-67, 1973-75, C1500 1990-93, 1996-99, Chevelle 1965-73, Blazer 1973, K1500 1996-99, C10 Pickup 1968-80, Caprice 1966-76 + 46 more models

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14 items

Description
Specifications
Adjuster Thread Depth0.8
Base Dia/Thread7/16-14
Base Thread Length (in)0.700 in.
Base Thread Size7/16-14 in.
Effective Stud Length (in)1.750 in.
Guideplate Locator ShankYes
QuantitySold as a pair.
Rocker Arm Nut Thread Length (in)0.800 in.
Rocker Arm Nut Thread Size3/8-24 in.
Screw-In Thread Depth0.7
Shank Dia/Thread3/8-24
Stud Height1.75
$9.44
PART NUMBER: 134-7121
In Stock (10+)
Usually delivered within 2 days
Description
Specifications
Adjuster Thread Depth0.67
Base Dia/Thread7/16-14
Base Thread Length (in)0.700 in.
Base Thread Size7/16-14 in.
Effective Stud Length (in)1.770 in.
Guideplate Locator ShankNo
QuantitySold as a set of 16.
Rocker Arm Nut Thread Length (in)0.670 in.
Rocker Arm Nut Thread Size7/16-20 in.
Screw-In Thread Depth0.7
Shank Dia/Thread7/16-20
Stud Height1.77
$9.20
PART NUMBER: 134-7123
In Stock (10+)
Usually delivered within 2 days
Description
Specifications
Adjuster Thread Depth0.85
Base Dia/Thread7/16-14
Base Thread Length (in)0.800 in.
Base Thread Size7/16-14 in.
Effective Stud Length (in)1.750 in.
Guideplate Locator ShankNo
QuantitySold as a pair.
Rocker Arm Nut Thread Length (in)0.850 in.
Rocker Arm Nut Thread Size7/16-20 in.
Screw-In Thread Depth0.8
Shank Dia/Thread7/16-20
Stud Height1.75
$9.20
PART NUMBER: 135-7121
In Stock (10+)
Usually delivered within 2 days
Description
Specifications
Adjuster Thread Depth1
Base Dia/Thread7/16-14
Base Thread Length (in)0.710 in.
Base Thread Size7/16-14 in.
Effective Stud Length (in)1.895 in.
Guideplate Locator ShankYes
NotesMachine work may be required.
QuantitySold as a pair.
Rocker Arm Nut Thread Length (in)1.000 in.
Rocker Arm Nut Thread Size3/8-24 in.
Screw-In Thread Depth0.71
Shank Dia/Thread3/8-24
Stud Height1.895
$9.44
PART NUMBER: 134-7124
In Stock (10+)
Usually delivered within 2 days
Description
Specifications
Adjuster Thread Depth1
Base Dia/Thread7/16-14
Base Thread Length (in)0.750 in.
Base Thread Size7/16-14 in.
Effective Stud Length (in)1.900 in.
Guideplate Locator ShankNo
QuantitySold as a pair.
Rocker Arm Nut Thread Length (in)1.000 in.
Rocker Arm Nut Thread Size7/16-20 in.
Screw-In Thread Depth0.75
Shank Dia/Thread7/16-20
Stud Height1.895
$9.20
PART NUMBER: 100-7121
In Stock (9)
Usually delivered within 2 days
Description
Specifications
Adjuster Thread Depth0.85
Base Dia/Thread7/16-14
Base Thread Length (in)0.850 in.
Base Thread Size7/16-14 in.
Effective Stud Length (in)2.350 in.
Guideplate Locator ShankYes
QuantitySold as a set of 16.
Rocker Arm Nut Thread Length (in)0.850 in.
Rocker Arm Nut Thread Size7/16-20 in.
Screw-In Thread Depth0.85
Shank Dia/Thread7/16-20
Stud Height2.35
$94.41
PART NUMBER: 135-7202
In Stock (8)
Usually delivered within 2 days
Description
Specifications
Adjuster Thread Depth0.58
Base Dia/ThreadM10 x 1.50
Base Thread Length (in)0.580 in.
Base Thread SizeM10 x 1.50mm
Effective Stud Length (in)1.595 in.
Guideplate Locator ShankYes
QuantitySold as a set of 12.
Rocker Arm Nut Thread Length (in)0.580 in.
Rocker Arm Nut Thread Size3/8-24 in.
Screw-In Thread Depth0.8
Shank Dia/Thread3/8-24
Stud Height1.595
$66.48
PART NUMBER: 100-7201
4 left at this price
Usually delivered within 2 days
Description
Specifications
Adjuster Thread Depth0.6
Base Dia/ThreadM10 x 1.50
Base Thread Length (in)0.750 in.
Base Thread SizeM10 x 1.50mm
Effective Stud Length (in)1.750 in.
Guideplate Locator ShankNo
NotesDesigned to fit 8.1L gas engines.
QuantitySold as a set of 16.
Rocker Arm Nut Thread Length (in)0.600 in.
Rocker Arm Nut Thread Size7/16-20 in.
Screw-In Thread Depth0.75
Shank Dia/Thread7/16-20
Stud Height1.75
$100.43
PART NUMBER: 135-7201
2 left at this price
Usually delivered within 2 days
Description
Specifications
Adjuster Thread Depth0.85
Base Dia/ThreadM8 x 1.25
Base Thread Length (in)0.600 in.
Base Thread SizeM8 x 1.25mm
Effective Stud Length (in)1.750 in.
Guideplate Locator ShankYes
QuantitySold as a set of 16.
Rocker Arm Nut Thread Length (in)0.850 in.
Rocker Arm Nut Thread Size3/8-24 in.
Screw-In Thread Depth0.6
Shank Dia/Thread3/8-24
Stud Height1.75
$98.43
PART NUMBER: 134-7201
2 left at this price
Usually delivered within 2 days
Description
Specifications
Adjuster Thread Depth0.85
Base Dia/ThreadM8 x 1.25
Base Thread Length (in)0.600 in.
Base Thread SizeM8 x 1.25mm
Effective Stud Length (in)1.750 in.
Guideplate Locator ShankYes
NotesMachine work is required.
QuantitySold as a pair.
Rocker Arm Nut Thread Length (in)0.850 in.
Rocker Arm Nut Thread Size3/8-24 in.
Screw-In Thread Depth0.6
Shank Dia/Thread3/8-24
Stud Height1.75
$12.60
PART NUMBER: 134-7221
Ships from manufacturer
Description
Specifications
Adjuster Thread Depth0.6
Base Dia/ThreadM10 x 1.50
Base Thread Length (in)0.750 in.
Base Thread SizeM10 x 1.50mm
Effective Stud Length (in)1.750 in.
Guideplate Locator ShankNo
NotesDesigned to fit 8.1L gas engines.
QuantitySold as a pair.
Rocker Arm Nut Thread Length (in)0.600 in.
Rocker Arm Nut Thread Size7/16-20 in.
Screw-In Thread Depth0.75
Shank Dia/Thread7/16-20
Stud Height1.75
$12.60
PART NUMBER: 135-7221
Ships from manufacturer
Description
Specifications
Adjuster Thread Depth0.85
Base Dia/Thread7/16-14
Base Thread Length (in)0.850 in.
Base Thread Size7/16-14 in.
Effective Stud Length (in)2.350 in.
Guideplate Locator ShankNo
NotesAluminum heads.
QuantitySold as a pair.
Rocker Arm Nut Thread Length (in)0.850 in.
Rocker Arm Nut Thread Size7/16-20 in.
Screw-In Thread Depth0.85
Shank Dia/Thread7/16-20
Stud Height2.35
$12.39
PART NUMBER: 135-7222
Ships from manufacturer
Description
Specifications
Adjuster Thread Depth0.58
Base Dia/ThreadM10 x 1.50
Base Thread Length (in)0.800 in.
Base Thread SizeM10 x 1.50mm
Effective Stud Length (in)2.386 in.
Guideplate Locator ShankNo
NotesFits Chevrolet 4.3L V6 Vortec cylinder heads.
QuantitySold as a pair.
Rocker Arm Nut Thread Length (in)0.580 in.
Rocker Arm Nut Thread Size3/8-24 in.
Screw-In Thread Depth0.8
Shank Dia/Thread3/8-24
Stud Height1.595
$11.52
PART NUMBER: 100-7221
Ships from manufacturer
Description
Specifications
Adjuster Thread Depth0.75
Base Dia/Thread3/8-16
Screw-In Thread Depth0.75
Shank Dia/Thread7/16-20
Stud Height1.895
$9.76
PART NUMBER: 135-7122
Ships from manufacturer
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