SBC Vortec Sportsman R/A's - 1.6 Ratio 3/8 St

The PRW Industries SBC Vortec Sportsman R/A's - 1.6 Ratio 3/8 St rocker arms are designed for small-block Chevy engine builders looking for reliable and cost-effective valvetrain geometry for high-performance and racing applications. This 16-piece set provides a 1.6 ratio, optimizing valve lift and duration across the RPM range while minimizing friction and wear on cam lobes compared to traditional flat-tappet designs.

The 3/8-inch stud mount configuration is the industry standard for small-block Chevy applications, ensuring straightforward installation on compatible cylinder heads. The self-aligning design minimizes binding and compensates for minor manufacturing tolerances, while the steel construction with a natural finish ensures durability in both street and competition environments. The roller tip design significantly reduces valvetrain friction, enhancing engine efficiency and extending component life under high-lift, high-RPM conditions.

This rocker arm set is ideal for Sportsman-class racing, street performance builds, and engine rebuilds where precision valvetrain geometry and long-term reliability are essential without premium pricing. The 1.6 ratio is a balanced specification, suitable for moderate to aggressive cam profiles, and compatibility with lifter types depends on the specific build configuration.