Speedmaster GM 4L80 Transmission Billet Aluminum Full Manual Valve Body - Black PCE634.1009.02

The Speedmaster PCE634.1009.02 is a billet aluminum full manual valve body designed for GM 4L80 automatic transmissions. This precision-engineered component replaces the factory valve body and enables full manual control of transmission shifting, making it an essential upgrade for high-performance, street, and racing applications where driver control over gear selection is critical.

Crafted from lightweight billet aluminum, this manual valve body provides durability and reliability in demanding automotive environments. It is fully compatible with GM 4L80 transmission platforms and serves as a direct replacement for factory units. The black finish offers a professional appearance while the full manual operation allows drivers to override automatic shifting logic. This upgrade is popular among enthusiasts building custom transmissions, restoring classic vehicles, or optimizing transmission performance for street or strip use.

Key Features & Benefits

• Billet Aluminum Construction: Durable, lightweight billet aluminum body engineered for strength and precision fitment.
• Full Manual Control: Enables complete manual override of transmission shifting for driver control.
• GM 4L80 Compatibility: Direct replacement valve body for GM 4L80 automatic transmissions.
• Black Finish: Professional black coating for corrosion resistance and appearance.
• Performance Upgrade: Essential for custom transmission builds, hot rods, and high-performance applications.

Specifications

Ideal Applications

• High-performance transmission builds and custom hot rod projects
• Racing and strip-focused vehicle modifications
• Classic and vintage GM vehicle restoration with manual transmission control
• Street performance upgrades for manual transmission operation and driver control