Speedmaster®
GM Turbo 400 TH400 Quick Spool Valve System
Product Information
Overview
The Speedmaster quick spool system is a pressure relief system for the Turbo 400. This system dumps the converter outlet pressure, loosening the converter and helping spool the turbo quickly. This system can be wired directly to the transbrake wire. The quick spool system can be initiated via a switch, timer, or digital output signal.
Specs
| Brand: | Speedmaster |
| Part Number: | PCE676.1005 |
| Part Type: | Automatic Transmission Rebuild Components |
| Torque Converter Lock Up Kit Component Type: | Spool Valve |
| High Heat/High Flow Solenoid Included: | Yes |
| Fittings Included: | Yes |
| Quantity: | Sold as a kit |
| Notes: | Tee fitting can be used with or without external oil cooler circuit. |
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.