Speedmaster PCE261.1033.03 Mopar Chrysler BB 383 440 1.5 Aluminum Roller Rocker Arms & Shafts .100 Offset

The Speedmaster PCE261.1033.03 is a complete roller rocker arm and shaft assembly designed for Mopar Chrysler big-block 383 and 440 engines. This aluminum construction set features a 1.5 ratio with a .100 inch offset, delivering improved valve lift and durability for both street and performance builds. The roller design reduces friction at the valve interface, enhancing engine efficiency and reliability.

These rocker arms are engineered for direct fitment on Mopar big-block platforms, making them an ideal upgrade for restoration, performance modification, or engine rebuilding projects. The aluminum construction keeps weight low while maintaining strength, and the included shafts provide the complete mounting system needed for installation. Whether you're refreshing a classic Chrysler muscle car or optimizing a performance engine, this assembly offers a proven upgrade path for enhanced valve train performance.

Key Features & Benefits

• Aluminum Construction: Lightweight aluminum roller rocker arms reduce valve train mass while maintaining durability.
• 1.5 Rocker Ratio: Designed to increase valve lift and improve engine breathing on Mopar big-block engines.
• Roller Design: Roller tips minimize friction at the pushrod interface for smoother operation.
• .100 Offset: Precision offset geometry engineered for Mopar Chrysler BB 383 440 fitment.
• Complete Assembly: Includes both rocker arms and mounting shafts for ready-to-install setup.

Specifications

Ideal Applications

• Big-block Mopar engine rebuilds and restoration projects
• Performance upgrades for Chrysler 383/440 muscle cars
• Street and strip engine builds
• Valve train optimization for improved breathing and efficiency