TCI Automotive 221580 - 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.

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 a clean, finished appearance.