TCI Automotive 221570 - Simplified passage routing for faster shifting. Highly radiused turns for max fluid flow. Full billet CNC construction for light weight. Hard coat anodizing for durability and good looks.

The TH400 Billet Valve Body from TCI is optimized to allow for reverse manual, reverse transbrake and reverse engine braking operation, and quicker shifting. A high-performance replacement for OEM cast iron versions, the TH400 Billet Valve Body features re-routed passages that are simplified, shorter and highly radiused for improved transmission fluid flow and shift speed. It retains reverse gear position, eliminating the need to use a transbrake button. Machined billet aluminum construction offers weight savings without compromising strength.

A high-performance replacement for OEM cast iron versions, the TH400 Billet Valve Bodies feature re-routed passages that are simplified, shorter and highly radiused for improved transmission fluid flow efficiency and shift speed, as well as building pressure more quickly than competitors. The machined billet aluminum construction offers weight savings without compromising strength while hardcoat anodizing increases valve bore wear resistance and provides