PT4L60ESS (Rated to 425HP)

Our street/strip version of the 4L60E is designed for the performance enthusiast. This trans features our High performance pump with high rpm pump rings, Torrington vanes, high output boost valve and pressure regulator assembly, special valve body and servo assembly,alloy accumulator pistons, TCC and AFL valve replacement, steel bonded apply pistons, 29 element dual cage input sprag,Borg warner low tension low sprag assembly, special modified sun gear shell, increased clutch capacity, performance servo, updated electronics, increased operating pressure and lube mods and a host of other modifications. Comes with our Street/Strip torque converter with carbon clutch, furnace brazing, hardened hub, and stall speeds up to 2600 rpm. Rated to 425HP this is a great choice for Corvettes, F-bodies and Impala owners who modify their vehicles.