Gearstar 4L85E Supermatic LS Level 4 Transmission 1500HP
SKU: GSTGS4L85ELSL4
Chevrolet Supermatic 4L85E. 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.
Overview
4L85E Level 4 Performance Transmission
Performance Ratings
Rated up to: 1500 HP at the crankshaft
Rated up to: 1500 Ft-Lbs of torque at the crankshaft
Torque Converter & Stall
Custom-built 10” billet Yank Performance converter (multi-disk or single-disk lock-up)
Stall range: 2600–3600 RPM
Internal Build Components
Master overhaul kit with hardened steels
Raybestos Stage 1 frictions
Carbon fiber heavy-duty reverse band
Wide carbon fiber kickdown band
Extra capacity 2nd gear clutch assembly
Extra capacity 3rd gear super drum (HD sprag, race, modified plates)
Heavy-duty 2nd gear apply piston
Upgraded Hard Parts
300M hardened input shaft
300M hardened intermediate shaft
300M forward hub
Billet direct drum with 36-element oversized sprag
Billet sprag case (replaces OE plastic)
New 5-pinion reaction planetary gear set
New 5-pinion low planetary gear set
Pump & Valve Body Upgrades
High-capacity pump assembly with new gears
Blueprinted pump & valve body
Updated boost valve
Updated TCC regulator valve
Shift & Performance Enhancements
Transgo reprogramming kit with valve body recalibration
Gearstar full race shift kit
Electrical & Control Components
New shift solenoids
New EPC solenoid
New PWM solenoid
New manifold pressure switch
New input & output speed sensor
New internal wiring harness
Bearings, Bushings & Sealing
New bearing kit
New bushing kit
New thrust washer kit
New low roller sprag
Filtration & Supporting Components
High-flow filter
Transmission mount
Optional Upgrades
Reverse pattern full manual valve body (with or without transbrake)
Modified stock case with billet adapter
SFI bellhousing options for multiple engine applications
Additional Information
Compatible components available in the 4L85E 2WD transmission section
| Gear Ratios |
1st |
2nd |
3rd |
4th
|
| GM 4L80E/ 4L85E |
2.480 |
1.480 |
1.000 |
0.750 |
| 2WD Dimensions |
| Measurements are taken from the mounting surface where the trans meets the engine block to the tip of the tailshaft |
| Total Length: 31″ |
| Distance to trans mount center: 30 1/2″ |
