COMP Cams 4582-1 LS Rocker Arm Stud and Nut M8x1.25 65mm

The COMP Cams 4582-1 is a single replacement rocker arm stud and nut designed for LS-series engines. Featuring an M8 x 1.25 stud thread and an M8 x 1.25 base thread with a 65mm effective stud length, this precision stud is engineered to provide a secure, reliable mounting point for rocker arm assemblies on LS platform valve trains.

COMP Cams rocker studs are manufactured to tight tolerances to ensure proper rocker arm geometry and consistent valvetrain operation. Replacing worn, stretched, or damaged rocker studs is an essential step in any valvetrain rebuild or performance upgrade, helping maintain accurate rocker arm pivot points and preventing valvetrain instability under high-RPM conditions.

Key Features:

• Single rocker arm stud and nut included
• Stud thread: M8 x 1.25
• Base thread: M8 x 1.25
• Effective stud length: 65mm (approximately 2.56 inches)
• Designed for LS-series engine valvetrain applications
• Precision-machined for consistent rocker arm geometry
• Direct replacement or upgrade rocker stud

Sold as a single stud and nut unit, the COMP Cams 4582-1 is the ideal solution for replacing individual damaged studs or completing a full valvetrain refresh on LS-based engines.