Chev Big Block Mark IV 396-454 CID & Gen V/VI 454 CID with Dart Pro 1, Iron Eagle & 320/360 Heads 235-7202 BB Chevy Rocker Arm Stud Kit ARP Fasteners ARP235-7202

ARP PRO SERIES ROCKER ARM STUD KIT 7/16-20" X 2" CHEV BB WITH DART HEADS ARP 235-7202 These Pro series rocker arm studs from ARP are ideal for competition applications. They are made from 8470 chromoly 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)