ARP Pro Series rocker arm studs are ideal for competition applications. They are made from 8470 chromoly steel and are heat-treated to 200,000 psi tensile strength. They 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. Pro Series rocker arm studs were designed for use with Perma-Loc adjusters (not for use with OEM-style, self-locking nuts).

More From This Category

ARP Rocker Arm Studs, High Performance, Pro-Series, 5/16 in.-24 Thread, 1.46 in. Effective Stud Length, Kit

ARP Rocker Arm Studs, High Performance, Pro-Series, 5/16 in.-24 Thread, 1.46 in. Effective Stud Length, Kit

$234.08

View
ARP Rocker Arm Studs, High Performance, Pro-Series, 7/16 in.-20 Thread, 2 in. Effective Stud Length, Set of 16

ARP Rocker Arm Studs, High Performance, Pro-Series, 7/16 in.-20 Thread, 2 in. Effective Stud Length, Set of 16

$260.64

View
ARP Rocker Arm Studs, High Performance, Pro-Series, 7/16 in.-20 Thread, 2 in. Effective Stud Length, Set of 8

ARP Rocker Arm Studs, High Performance, Pro-Series, 7/16 in.-20 Thread, 2 in. Effective Stud Length, Set of 8

$113.67

View
ARP Rocker Arm Studs, High Performance, Pro-Series, 7/16 in.-20 Thread, 2 in. Effective Stud Length, Kit

ARP Rocker Arm Studs, High Performance, Pro-Series, 7/16 in.-20 Thread, 2 in. Effective Stud Length, Kit

$240.62

View
ARP Rocker Arm Studs, High Performance, Pro-Series, 7/16 in.-20 Thread, 1.9 in. Effective Stud Length, Kit

ARP Rocker Arm Studs, High Performance, Pro-Series, 7/16 in.-20 Thread, 1.9 in. Effective Stud Length, Kit

$175.35

View
ARP Rocker Arm Studs, High Performance, Pro-Series, 7/16 in.-20 Thread, 1.9 in. Effective Stud Length, Kit

ARP Rocker Arm Studs, High Performance, Pro-Series, 7/16 in.-20 Thread, 1.9 in. Effective Stud Length, Kit

$240.62

View