Manual Valve Body Kit - Reversed Pattern

MANUAL VALVE BODY KIT (REVERSED PATTERN)

The Coan Racing COA‑32010 Manual Valve Body Kit (Reversed Pattern) is a precision-crafted setup designed to convert a Turbo Hydramatic 350 transmission into full manual control with a reverse shift sequence. This kit includes a machined valve body, new separator plate(s), gaskets, and a modulator-plug assembly, and is supplied with servo spacers that alter band apply timing for precise, driver-controlled shifts. The installation process, detailed in Coan’s service instructions, also involves removing the governor and check balls and plugging the modulator port to disable automatic elements.

Built for drag racers, bracket competitors, or any driver requiring rock-solid, predictable control, the COA‑32010 eliminates the transmission’s automatic shifting behavior. It relies solely on manual valve actuation, giving the driver full command over shift RPM and timing. The reversed shift pattern enhances engagement during staging and launch, allowing smoother, reverse-to-drive transitions that suit a race-ready chassis. With this kit installed, the TH350 functions more like a race-transmission, responsive, consistent, and entirely under the driver’s control.