GM TH400 Transmission Billet Aluminum Ext TransBrake Full Manual Valve Body Based on a positive retention

Based on a positive retention system

Available in different bore diameters to suit your specific engine's needs

ribbed design that adds a unique look to your engine

Don't spend hours figuring out which pieces and parts you need to get what you want from your engine

GM TH400 Transmission Billet Aluminum Ext TransBrake Full Manual Valve Body Based on a positive retentionSpeedmaster billet aluminum valve bodies are a direct replacement for your original valve body. These valve bodies shift super fast and incorporate an adjustable pressure regulator. Fully 5 axis CNC machined from billet aluminum these valve bodies will help your project shed some weight