ARP 134-7121 SBC, High Performance Rocker Arm Studs, 7/16-14 in. Base, 1.750 in. Long, Pair
$$8.93Fasteners, Hardware and Mounts \ Rocker Arm Locks Nuts, & Studs \ Rocker Arm Studs134-7121
ARP134-7121
ARP 134-7121 SBC, High Performance Rocker Arm Studs, 7/16-14 in. Base, 1.750 in. Long, Pair
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 ...
ARP134-7121 SBC, High Performance Rocker Arm Studs, 7

ARP

ARP 134-7121 SBC, High Performance Rocker Arm Studs, 7/16-14 in. Base, 1.750 in. Long, Pair

$8.93

Item #: ARP134-7121

Mfg Part #: 134-7121

UPC #: 672036002107

Applies To Continental U.S. orders only

Out Of Stock

Specifications
Rocker Arm Studs Specifications
Base Thread Size
7/16-14 in.
Rocker Arm Nut Thread Size
3/8-24 in.
Rocker Arm Stud Material
8740 Chromoly
Guideplate Locator Shank
Yes
Rocker Arm Nut Thread Length (in.)
0.800 in.
Effective Stud Length (in.)
1.750 in.
Base Thread Length (in.)
0.700 in.
Quantity
Sold as a pair.
Applications
Make
Chevrolet
Engine Family
Chevy small block Gen I
Engine Sizes
4.3L/262-6.6L/400
Years
1955-2002
Cylinder Head Style (application)
Stock configuration
General
Brand
ARP
Item #
ARP134-7121
Mfg Part #
134-7121
UPC
672036002107
Description

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 extralarge 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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