Speedmaster GM TH350 Billet CNC Full Manual Valve Body Spragless Upgrade Kit w/ Transbrake

This Speedmaster GM TH350 Billet CNC Full Manual Valve Body Spragless Upgrade Kit delivers precision transmission control for performance and racing applications. The spragless design and manual operation provide drivers with direct command over shifting and transbrake function, making it ideal for drag racing and high-performance builds where split-second shift timing is critical.

Crafted from billet aluminum and finished with CNC precision machining, this valve body upgrade replaces the original stock unit with a robust, performance-oriented component. The integrated transbrake feature enables launch control and consistent off-the-line performance. Designed specifically for GM TH350 transmissions, this kit ensures compatibility and proper fitment with your existing drivetrain. Whether you're building a dedicated race car or upgrading a street machine, this manual valve body offers the control and durability that serious performance enthusiasts demand.

Key Features & Benefits

• Billet CNC Construction: Precision-machined billet aluminum body engineered for durability and performance reliability.
• Full Manual Operation: Complete manual valve body control enables driver-commanded shifting and transbrake engagement.
• Spragless Design: Eliminates freewheel devices for direct mechanical response and consistent performance.
• Integrated Transbrake: Built-in transbrake function for precise launch control in racing applications.
• GM TH350 Specific: Engineered and tested for direct compatibility with GM TH350 automatic transmissions.

Specifications

Ideal Applications

• Drag racing and competition transmission control
• High-performance street rod and muscle car builds
• Custom transmission tuning for advanced shifting strategies
• Race car launches with transbrake engagement