The Speedmaster PCE260.1009 Rocker Arm Screw-In Stud Kit converts M8 8mm base threads to a 3/8" rocker arm stud, standing 1.380" above the hex for precise rocker arm geometry on Chevy GM LS engines. Screw-in stud construction provides a more secure and reliable foundation than press-in studs, making this kit a smart upgrade for performance and high-lift camshaft applications.
Designed specifically for Chevy GM LS engine families, this kit delivers the correct thread conversion and stud height needed to maintain proper valvetrain geometry when upgrading or replacing rocker arm studs. Whether you're building a street performance or race engine, the Speedmaster PCE260.1009 offers a straightforward, bolt-in solution to keep your valvetrain operating accurately and consistently.
