GM LS Roller Tip Rocker Arm Set 1.70 Ratio

The GM LS Roller Tip Rocker Arm Set 1.70 Ratio from Howards Racing Components is engineered for LS engine builders seeking to maximize valve train efficiency and durability in high-performance applications. Whether you're assembling a street performance engine, preparing for track duty, or rebuilding a tired LS platform, this rocker arm set delivers the reliability and precision that modern fuel injection and power demands require. The 1.70 ratio geometry directly impacts cam lift multiplication and valve actuation timing, making component selection critical for cam compatibility and target horsepower.

Howards Racing Components has designed this roller tip rocker arm set with reduced friction and wear characteristics that distinguish roller rocker arms from traditional stamped steel options. The roller tip design reduces parasitic loss by minimizing drag against the valve stem, allowing cam profiles to work more efficiently across the RPM band. This set's 1.70 ratio provides a specific lift multiplication factor—ideal for camshafts ground with this ratio in mind—ensuring proper valve opening duration and lift without over-stressing valve springs or pushrods. The precision machining and roller bearing construction maintain consistent geometry across extended operating cycles, critical for engines experiencing frequent high-RPM operation or boost applications.

This rocker arm set is ideal for LS1, LS2, LS3, and LS-based small-block platforms running factory or aftermarket cam profiles matched to 1.70 ratio geometry. Installation requires attention to pushrod length, valve spring pressure ratings, and rocker arm geometry clearances—factors that directly influence valve control and engine reliability. Technicians and engine builders must verify camshaft rocker arm ratio specifications before purchase to ensure optimal valve train harmonics and prevent accelerated wear. The 8.1 lb set weight reflects a complete assembly, and proper torque sequencing during installation is essential for consistent clamp load and long-term retention.