SBC Rocker Arms (8pk) 1.5 Ratio 7/16 Stud

The SBC Rocker Arms (8pk) 1.5 Ratio 7/16 Stud are precision-engineered valve train components designed specifically for small-block Chevrolet engines seeking improved performance and reliability. Rocker arms serve as the mechanical link between the camshaft and intake/exhaust valves, directly controlling valve lift and duration—making their quality critical to engine efficiency and longevity. This eight-piece set addresses the needs of engine builders, hot rodders, and enthusiasts who demand OEM-compatible construction with enhanced durability for street, strip, or racing applications.

Manufactured by ELGIN under the Black Ice product line, these rocker arms feature a 1.5:1 mechanical advantage ratio, which increases valve lift relative to camshaft lift—resulting in improved valve opening and closing response. The 7/16-inch stud mount design ensures secure fastening to small-block Chevy cylinder heads using OEM-pattern long-slot configuration for alignment flexibility. Constructed from hardened steel, these rocker arms deliver superior wear resistance and maintain consistent geometry under sustained high-RPM operation, critical for both naturally aspirated and boosted engine builds.

This rocker arm set is ideal for small-block Chevrolet builders modernizing classic muscle cars, street rods, or race engines requiring bolt-on performance upgrades without major cylinder head modification. The long-slot design accommodates minor pushrod length variations during installation, simplifying setup for non-stock camshaft combinations. Installation requires removing original rocker arms and fasteners, then securing the new set to matching stud locations—a straightforward task for experienced technicians or experienced DIY builders with proper torque specifications.