Speedmaster Mopar Chrysler BB 383 440 1.5 Aluminum Roller Rocker Arms & Shafts .650 Offset PCE261.1033.02

The Speedmaster PCE261.1033.02 roller rocker arms and shafts are engineered for Mopar Chrysler big-block 383 and 440 engines. These aluminum rocker arms feature a 1.5 ratio and .650 offset design, delivering improved valve actuation and reduced friction compared to stock components. Built for durability and precision, they integrate seamlessly into your engine's valvetrain system.

These roller rocker arms are ideal for street performance, racing, and high-output engine builds where enhanced valve lift and reliability are priorities. The aluminum construction minimizes weight while maintaining structural integrity, and the offset geometry is calibrated for optimal geometry on 383 and 440 big-block platforms. Whether you're rebuilding a classic Mopar or upgrading an existing engine, these components provide the performance foundation serious enthusiasts demand.

Key Features & Benefits

• 1.5 Ratio Design: Provides mechanical advantage for improved valve lift and performance in 383 and 440 engines.
• Aluminum Construction: Lightweight yet durable material reduces overall valvetrain mass and inertia.
• .650 Offset Configuration: Precisely engineered geometry optimized for Mopar Chrysler big-block compatibility and valve actuation.
• Roller Design: Rolling contact surfaces reduce friction and wear compared to traditional sliding rocker arms.
• Complete Shaft Assembly: Includes both rocker arms and shafts for a ready-to-install valvetrain solution.

Specifications

Ideal Applications

• Street performance engine builds
• Racing and high-output Mopar big-block builds
• Classic Chrysler 383/440 engine rebuilds
• Performance upgrades for improved valve lift