With roller rockers and stud girdle ARP Pro Series rocker arm studs, 7/16-20 in. Thread, 2.000 in. Effective Stud Length, designed for competition applications, ARP's Pro Series rocker arm studs are mode of premium grade 8740 Chrome moly steel and heat-treated to a tensile strength of 200,000psi. 334-7204 Rocker Arm Studs. ARP Rocker Arm Studs 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 arm 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 extra-large 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™ or Shur-loc rocker arm nuts
B 2.000, overall stud height C .750, screw-in thread depth D .800, adjuster thread depth E 7/16-20, shank diameter and thread F 7/16-14, base diameter and thread
These parts have a shank portion under hex to locate guide plate.
Base Thread Length (in)
0.750 in.
Base Thread Size
7/16-14 in.
Brand
ARP
Effective Stud Length (in)
2.000 in.
Guideplate Locator Shank
Yes
Part Type
Rocker Arm Studs
Product Line
ARP Pro Series Rocker Arm Studs
Quantity
Sold as a set of 16.
Rocker Arm Nut Thread Length (in)
0.800 in.
Rocker Arm Nut Thread Size
7/16-20 in.
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