Bolt - Rocker Arm 7.0L LS

The Bolt - Rocker Arm 7.0L LS from Chevrolet Performance is a precision-engineered valve train component designed for high-performance LS engine builds and restorations. This OEM-spec rocker arm serves as a critical valve actuation element, translating camshaft lobe motion into precise valve lift and timing for optimal cylinder head operation. Whether you're rebuilding a stock 7.0L LS powerplant or upgrading a modified engine, this genuine Chevrolet Performance part ensures reliability and consistency across all eight cylinders.

Rocker arms are load-bearing fulcrums that multiply camshaft motion while maintaining precise valve opening angles and dwell times—critical for fuel atomization, combustion efficiency, and exhaust scavenging. The Chevrolet Performance specification for the 7.0L LS incorporates hardened steel construction to withstand repeated cycling stresses and maintain dimensional stability under peak cylinder pressures. Proper rocker arm geometry ensures minimum valve guide wear, consistent valve seat contact, and eliminates excessive clearance that would compromise combustion control and emissions compliance.

This rocker arm is essential for LS engine enthusiasts performing top-end rebuilds, long-block restorations, or complete valve train overhauls on 7.0L displacement platforms. Installation requires rocker arm stud torque sequencing and proper pushrod length validation to avoid valve-to-piston contact. Single-piece replacement or complete set upgrades are recommended for optimal performance.