LS Pro-Mag Rocker Arm Set 1.8 Ratio

The LS Pro-Mag Rocker Arm Set 1.8 Ratio is a precision valvetrain component designed for serious LS engine builders and enthusiasts seeking enhanced performance and reliability. This rocker arm set is ideal for applications on street, strip, and track, where even minor improvements in valvetrain geometry can lead to significant gains in horsepower and torque delivery.

Engineered with premium materials and tight tolerances, the 1.8 ratio design optimizes valve lift characteristics across the entire RPM range. This design minimizes deflection under high-RPM loads, ensuring consistent valve actuation and reducing parasitic losses in the valvetrain. The Pro-Mag designation indicates optimized geometry for modern LS platforms, enhancing the effectiveness of aggressive cam profiles while maintaining durability.

Builders who demand consistency and repeatability in their LS platforms will benefit from the 1.8:1 mechanical advantage, which balances aggressive lift multiplication with structural integrity. This allows cam grinds to achieve their full potential without compromising component life. The rocker arm set is compatible with Gen III/IV LS1, LS2, LS3, LS7, and LS9 engines, making it a versatile choice for performance enthusiasts.