Upgrade your GM TH400 automatic transmission with the Speedmaster PCE634.1012.01 Billet Aluminum Valve Body. Machined from billet aluminum for superior strength and precision over stock cast units, this valve body is engineered to deliver firmer, more consistent shifts and improved transmission response under demanding performance driving conditions.
A standout feature of this valve body is its built-in engine braking capability, allowing you to leverage deceleration control for better vehicle handling and drivability on the street or strip. Designed specifically for GM TH400 transmissions, this is a direct-application upgrade that pairs Speedmaster's performance engineering with the legendary durability of the TH400 platform.
MPNPCE634.1012.01
UPC840136572619
