

Chevrolet Supermatic 4L80E. This is a four-speed automatic transmission. If an automatic valve body is used, then a standalone transmission controller is required to control the transmission.
Model: 4L80E Level 4 (LT pilot for Chevy Big Block / Small Block)
Power Rating: Up to 800 HP (crankshaft)
Torque Rating: Up to 750 ft-lbs (crankshaft)
Custom-built 10ā Lock-Up Billet Yank Performance converter
Custom stall speed: 2800ā3400 RPM
Master overhaul kit with hardened steels
Raybestos Stage I frictions
Expanded capacity forward clutch drum
Extra capacity second gear clutch assembly
Expanded the capacity of the third clutch drum
Updated molded steel direct clutch piston
300M input shaft
300M main shaft
300M forward clutch hub
Heavy-duty intermediate sprag
New low roller assembly
Updated reverse band
Wide kickdown band with a new apply piston
TransGo reprogramming kit with valve body recalibration & shift command
Updated boost valve
Updated TCC regulator valve
Blueprinted pump & valve body
New internal wiring harness
New manifold pressure switch
New EPC solenoid
New PWM solenoid
New input & output speed sensors
New 1ā2 shift solenoid
New 3ā4 shift solenoid
New Torrington bearing kit
New bushing kit
New thrust washer kit
Filter
Transmission mount
New OEM steel pan
| Gear Ratios | 1st | 2nd | 3rd | 4th |
| GM 4L80E/ 4L85E | 2.480 | 1.480 | 1.000 |
0.750 |
Ā
| 2WD Dimensions |
| Measurements are taken from the mounting surface where the trans meets the engine block to the tip of the tailshaft |
| Total Length: 31ā³ |
| Distance to trans mount center: 30 1/2ā³ |
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