Speedmaster PCE261.1097 Chevy GM LS1 LS6 1.9 Ratio Adjustable Stainless Steel Roller Rocker Arm Set

The Speedmaster PCE261.1097 is a roller rocker arm set designed for Chevy and GM LS1 and LS6 engines. This stainless steel rocker arm assembly features a 1.9 ratio and adjustable design, making it suitable for engine builders and performance enthusiasts looking to upgrade or replace factory rocker arms.

Roller rocker arms reduce friction compared to traditional designs, which can improve valvetrain efficiency and reduce wear on engine components. The stainless steel construction provides corrosion resistance and durability in high-heat engine environments. The 1.9 ratio specification is a key performance parameter that affects valve lift multiplication, allowing builders to fine-tune engine performance characteristics. This set is intended for use in LS-platform engine builds, restorations, and performance upgrades where precision valvetrain components are required.

Key Features & Benefits

• 1.9 Ratio Design: Adjustable rocker arm ratio optimized for LS1 and LS6 engines.
• Stainless Steel Construction: Corrosion-resistant material for durability in high-temperature engine applications.
• Roller Design: Reduces friction and wear compared to traditional rocker arm designs.
• LS Platform Specific: Engineered to fit Chevy and GM LS1 and LS6 engine blocks.
• Adjustable Setup: Allows fine-tuning of valvetrain geometry for custom engine builds.

Specifications

Ideal Applications

• LS1/LS6 engine builds and restorations
• Performance engine upgrades and modifications
• Custom valvetrain tuning for racing or street performance
• Engine block rebuilds requiring precision rocker arm components