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Part number: 134-7124
Product Details
ARP 134-7124 High Performance Series Rocker Arm Studs - Set of 2
Products specifications
Adjuster Thread Depth 1
Base Dia/Thread 7/16-14
Base Thread Length (in) 0.710 in.
Base Thread Size 7/16-14 in.
Effective Stud Length (in) 1.895 in.
Guideplate Locator Shank Yes
Notes Machine work may be required.
Quantity Sold as a pair.
Rocker Arm Nut Thread Length (in) 1.000 in.
Rocker Arm Nut Thread Size 3/8-24 in.
Screw-In Thread Depth 0.71
Shank Dia/Thread 3/8-24
Stud Height 1.895

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.

  • Designed for use with ARP's patented Perma-Loc adjusters, not OEM-style self-locking nuts
  • 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
  • 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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N
Great price and good company to buy from!
J
I was apprehensiveness at first to make a major purchase with Autoplicity due to their extremely low price and lack of reviews.  I decided to take the chance and I am very glad I did.  I made my order on a Monday morning at 0900 eastern time and my product arrived on Wednesday at 3pm.  The item was exactly as described and the most astonishing part is that my purchase was released from the factory less than 45 days ago.  I was expecting a model that had been sitting on a shelf for the last year and needed to be updated.  That was not the case.  I will definitely order from Autoplicity again in the future.
J
I found what I wanted and it was overall a pleasant experience.
S
Very good price. Super quick delivery. Will def. buy from them again. Highley recomend them
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