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Part number: 135-7102
Product Details
ARP 135-7102 High Performance Series Rocker Arm Stud Kit
Products specifications
Adjuster Thread Depth 0.75
Base Dia/Thread 3/8-16
Base Thread Length (in) 0.750 in.
Base Thread Size 3/8-16 in.
Effective Stud Length (in) 1.900 in.
Guideplate Locator Shank Yes
Notes These rocker arm studs are designed to convert non-adjustable Gen V cylinder heads to an adjustable valvetrain.
Quantity Sold as a set of 16.
Rocker Arm Nut Thread Length (in) 0.750 in.
Rocker Arm Nut Thread Size 7/16-20 in.
Screw-In Thread Depth 0.75
Shank Dia/Thread 7/16-20
Stud Height 1.9

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, .750 adjuster thread depth, 7/16-20 shank diameter and thread, and 3/8-16 base diameter and thread.

  • Designed for use with ARP's patented Perma-Loc adjusters, not OEM-style self-locking nuts
  • Stud dimensions are: 1.900 overall stud height, .750 screw-in thread depth, .750 adjuster thread depth, 7/16-20 shank diameter and thread, and 3/8-16 base diameter and thread
  • 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
  • Lengths are exact, designed to provide positive seating every time
  • Manufactured to high tolerances so they run-in straight and true, and the extra-large radius base offers greater resistance to flex
Reviews
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J
Good. RU able to get more parts for older VW?
M
Delivery faster than your confirmation email :)
H
Fast shipping cheapest I could find, easy to deal with, great product
A
Overall experience was good, please mind how you pack and ship your items.  The box came very torn and dilapidated.  Fortunately everything was still in the box.
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