82-93 TH700/R4 Shift Imp

The 82-93 TH700/R4 Shift Improver Kit from B and M Automotive is a direct-bolt upgrade designed to sharpen shift response and eliminate hesitation in the legendary TH700-R4 four-speed automatic transmission. This kit is ideal for enthusiasts looking to enhance the performance of their carbureted small-block or fuel-injected platforms from the 1980s through early 1990s.

The shift improver works by recalibrating the transmission's shift pressure curve and throttle valve relationship, reducing the time required for the transmission to transition between gears. It modifies internal hydraulic logic, allowing quicker response to throttle input without compromising reliability or transmission longevity. This engineering ensures that shift firmness increases proportionally with throttle application, delivering crisp 1-2 and 2-3 transitions while maintaining smooth engagement during light driving.

This upgrade is essential for vehicle owners who have installed performance cam profiles or fuel injection systems, as it significantly improves drivability and feel. Designed to fit within the compact dimensions of TH700-R4 transmission cases, the components integrate seamlessly into stock or lightly modified transmissions, making it a valuable addition for those seeking enhanced performance.