COMP Cams Rocker Arm Ultra Gold Arc LS1

COMP Cams is well-known for making performance valvetrain components, and their Ultra-Gold ARC Series rocker arms are a solid choice for GM LS-based engines. If you're looking to get a bit more out of your engine without a full cam swap, these 1.82 ratio rocker arms can help increase valve lift. They fit a wide range of vehicles, including popular models like the Chevrolet Silverado, Corvette, and Cadillac Escalade.

These rocker arms are built tough. The CNC-extruded aluminum body is stronger and stiffer than stock rockers and many other aftermarket aluminum designs, which is important when you're running higher-lift cams and springs that put more load on the valvetrain. The roller tip is a nice upgrade over the stock slider tip, reducing friction and wear. They also feature a larger-than-stock billet trunnion with captured needle bearings to help prevent failure under stress. These are a non-adjustable, bolt-down design, similar to OEM LS rockers, and they include the necessary pedestal mounts and bolts.

While these are a direct bolt-on for many LS applications, keep in mind that aftermarket valve covers, valve cover spacers, or valve cover clearancing might be needed. They are designed for LS1, LS2, LS6, and LS-based truck engines (4.8L, 5.3L, 6.0L), but will not work with 2014+ L83 Direct Injection or 2007+ 6.0L engines with rectangle port heads.