ARP 135-7102 High Performance Rocker Arm Stud Kit 7/16-20

ARP High Performance Series rocker arm studs solve the critical problem of inconsistent rocker geometry caused by poorly manufactured studs. These precision-engineered studs are concentric within .005 T.I.R. thread pitch to thread pitch, ensuring they install straight and true every time. The extra-large radius base provides superior resistance to flex under high loads, while exact lengths guarantee positive seating for consistent valve train operation.

Construction and Materials:

• Manufactured from 8740 chrome moly steel forgings for maximum strength
• Heat-treated to 180,000 psi tensile strength
• Ground flush tips for optimum adjuster seating
• Precision tolerances ensure straight installation without wobble

Specifications:

• Overall stud height: 1.900 inches
• Screw-in thread depth: .750 inches
• Adjuster thread depth: .750 inches
• Shank diameter and thread: 7/16-20
• Base diameter and thread: 3/8-16

Application Notes:

• Designed for use with ARP Perma-Loc adjusters (sold separately), not OEM self-locking nuts
• Ideal for E.T. Bracket Racing, limited rule oval track competition, and high-performance street applications
• When using longer-than-stock pushrods and valves, verify optimal stud length to ensure proper rocker arm installed height

ARP quality means consistent rocker geometry across all cylinders, resulting in more reliable valve train performance and reduced maintenance concerns.