Speedmaster®
GM TH400 Transmission Billet Aluminum Valve Body w/ Engine Braking
Product Information
Overview
Speedmaster billet aluminum valve bodies are a direct replacement for your original valve body. These valve bodies shift quickly and incorporate an adjustable pressure regulator. Fully 5 axis CNC machined from billet aluminum, these valve bodies will help your project shed some weight.
Specs
| Brand: | Speedmaster |
| Part Number: | PCE634.1012.01 |
| Part Type: | Automatic Transmission Valve Body |
| Valve Body Style: | Full Manual |
| Trans Brake Included: | Yes |
| Trans Brake Provisions: | Yes |
| Valve Body Material | Billet Aluminum |
| Quantity: | Sold Individually |
| Notes: | includes an engine braking option. |
Warranty Information
12-Month Limited Worldwide Warranty
Prop 65 Warning
This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Installation Guide
Our AI assistant generates a step-by-step guide for this product — covering installation, maintenance, and troubleshooting.
This AI-generated guide is for general reference only and does not constitute official Speedmaster product documentation. Always verify fitment, torque specifications, and safety requirements before installation.