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Your cart is empty.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.
denis gaboury
Reviewed in Canada on October 26, 2024
Parfait Aussi bien queARP
Matthew
Reviewed in the United States on May 18, 2021
Make sure you either have your rocker arm bosses on your head machined to accept arp studs and guide plate or buy a set of heads that already have that measurement taken off the head for guide plates for full roller rockers
Tracy S
Reviewed in the United States on March 26, 2021
Great studs did the job.
David M.
Reviewed in the United States on December 8, 2020
Wrong item
TheFryer
Reviewed in the United States on November 27, 2020
broke another stud due to a misaligned valvetrain. fixed the issue and needed a new stud.
Res2429
Reviewed in the United States on October 3, 2020
Does not fit 1997 Chevy s10 2.2 engine heads. Too big.
Louis Spaulding IV
Reviewed in the United States on January 28, 2019
Work perfect
Nick Davis
Reviewed in the United States on July 5, 2018
Studs have bulge at base that doesn’t allow rocker to sit low enough
Shannon
Reviewed in the United States on July 20, 2018
Exactly what my husband needed for his 1974 Chevy C10. Got here in only a couple of days. Completely satisfied customer!
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