Automotive Racing Products (ARP) Rocker Arm Stud Set 234-7201; Pro-Series Screw-In w/ Hex Shoulder 3/8 in. -24 2.450 in. Black Oxide 8740 Chromoly for Chevy 262-400

These Pro series rocker arm studs from ARP are ideal for competition applications. They are made from 8470 chromemoly steel and are heat-treated to 200,000 psi tensile strength. These studs are concentric within .005 T.I.R. thread pitch to thread pitch, which will give you more consistent rocker geometry. With an extra-large radius base, these studs are more resistant to flex and will provide a more positive seating. These rocker arm studs were designed for use with Perma-Loc adjusters (not for use with OEM-style, self-locking nuts).