4L65E Level 1

Hydra-Matic 4L65-E Four-Speed Automatic
Transmission (LS series V-8) 

Similar in design to the 4L60-E

The “L65” electronically controlled four-speed overdrive transmission is suitable for LS series V-8 engines producing up to 420 ft-lbs of torque

Features heavy-duty upgrades including five-pinion gear sets, heat-treated stator shaft splines, induction-hardened turbine shaft, seven-plate clutch, shot-peened output shaft and revised valve body calibration

Includes torque converter

Gear ratios: 1st: 3.06, 2nd: 1.62, 3rd: 1.00, 4th: 0.70

NOTE: Use with electronic converter P/N 12497316. Works with LS series V-8 engines (LS1, LS2, LS6; works with Gen I and II-style small-block engines if adapter kit P/N 19154766 is used).