Speedmaster Mopar Chrysler BB 383 440 1.6 Ratio Aluminum Roller Rocker Arms & Shafts PCE261.1034.01

The Speedmaster PCE261.1034.01 is a complete aluminum roller rocker arms and shafts assembly designed for big-block Mopar engines, specifically the Chrysler BB 383 and 440 series. This 1.6 ratio rocker arm set delivers reliable valve actuation for high-performance and stock engine applications, combining lightweight aluminum construction with roller-style bearing surfaces for reduced friction and improved durability.

These aluminum roller rocker arms are engineered for direct fitment on 383 and 440 big-block Chrysler engines, offering an efficient upgrade path for engine builders and performance enthusiasts. The 1.6 lever ratio provides balanced valve lift characteristics suited to these classic powerplants. The complete shaft assembly simplifies installation by providing all necessary mounting hardware and components in one package, making it ideal for engine rebuilds, restorations, and performance upgrades.

Key Features & Benefits

• 1.6 Ratio Design: Engineered lever ratio optimized for Mopar Chrysler big-block 383 and 440 engines.
• Aluminum Construction: Lightweight aluminum rocker arms reduce overall engine weight and inertia.
• Roller Bearing Surfaces: Roller-style contacts reduce friction for smoother valve operation.
• Complete Shaft Assembly: Includes all necessary shafts and mounting hardware for direct installation.
• Big-Block Fitment: Purpose-built compatibility with Chrysler BB 383 and 440 series engines.

Specifications

Ideal Applications

• Chrysler big-block engine rebuilds and restoration projects
• High-performance 383 and 440 engine upgrades
• Stock engine valve train replacement and maintenance
• Competition and street performance applications