GM LS S/S Roller Rocker Arms - 1.7 Ratio

The PRW Industries GM LS Stainless Steel Roller Rocker Arms with 1.7 ratio deliver full-roller precision for high-performance LS engine builds. This complete set of 16 rocker arms is engineered for LS1, LS2, and LS6 platforms, featuring an 8mm pedestal mount configuration and polished stainless construction that resists corrosion while maintaining a refined appearance on visible engine bays. The 1.70 ratio is a critical specification that increases valve lift relative to camshaft lift, enabling greater intake and exhaust valve travel for improved cylinder filling and scavenging in forced-induction and naturally aspirated combinations.

Full roller design reduces friction at the valve interface compared to stamped steel arms, translating to lower parasitic losses and more consistent valve timing across the RPM range. The 8mm pedestal mount is the OEM attachment standard for LS-series engines, ensuring precise rocker geometry and secure installation without modification to factory cylinder heads. Stainless steel construction provides superior corrosion resistance in high-moisture environments and under prolonged engine bay exposure, while the polished finish maintains a showroom-quality appearance. This Platinum Pro Series offering combines durability with accurate valve actuation, critical for engines running elevated boost levels, aggressive cam profiles, or extended duty cycles.

Designed for enthusiasts and professionals building or rebuilding LS engines, these rocker arms suit street performance, track, and forced-induction applications where stock rocker geometry may limit valve event optimization. The complete 16-piece set eliminates the need for piecemeal sourcing and ensures consistent ratio and quality across all eight cylinders. Compatible with LS1, LS2, and LS6 platforms, this product delivers the precision and material quality serious engine builders expect from PRW Industries.