Speedmaster PCE676.1007 TH400 Turbo 400 Billet Aluminum Intermediate Clutch Blocker Plate

The Speedmaster PCE676.1007 is a precision-machined billet aluminum intermediate clutch blocker eliminator plate designed for GM Turbo 400 (TH400) transmissions. This heavy-duty component allows you to convert your TH400 transmission into a 2-speed configuration by replacing the intermediate clutch pack assembly.

Key Features:

• CNC-machined from high-strength billet aluminum for maximum durability
• Eliminates the intermediate clutch pack to create a 2-speed transmission
• Direct replacement for the stock intermediate clutch assembly
• Designed specifically for GM Turbo 400 transmissions
• Lightweight construction reduces rotating mass
• Ideal for drag racing and high-performance applications where only low and high gears are needed

This blocker plate is commonly used in racing applications where simplifying the transmission and reducing weight are priorities. By eliminating the intermediate gear, you can reduce parasitic drag and improve acceleration in straight-line performance scenarios.