COMP Cams 1982-16 Max-Lift BSR Shaft rocker System, GM LS3/L92

This pair of Max-Lift BSR Shaft Mount Rockers for Rectangle Port (LS3/L92) LS engines is a bolt-in rocker upgrade that requires no machine work to install. Clears factory valve covers while greatly increasing valvetrain rigidity. LS3 / L92 Rectangle Port LS Cylinder Heads. Clears Factory Valve Cover: Yes. Height: Stock. Rocker Arm Ratio: 1.7. Rocker Arm Type: Shaft. Rocker Arm Material: Steel. Machine Work Required?: No. Maximum Valve Spring Open Pressure: 550. Includes Bolts/Hardware: Yes. Rocker Stud Diameter: 10. Bolt/Stud Size: 10. Intake Offset: Yes. Exhaust Offset: No. Rocker Arm Weight: 89. Full Shaft Assembly with Rockers Per Head Weight: 3.1.