4L85E - Level 4
Horse Power: 1000
(Up to 1000 ft lbs Torque)
Converter: Custom Built 10” or 11” Full Racing
Stall: 2800-4500
Master Overhaul Kit with Alto Hardened Kolene Steels
Raybestos Racing Blue Gen II Frictions
High Flow Filter
2 Transgo Reprogramming Shift Kits
GEARSTAR Full Race Shift Kit
Carbon Fiber Heavy Duty Reverse band
Wide Carbon Fiber Kickdown Band
New Bearing Kit
New Bushing Kit
New Thrust Washer Kit
New Low Roller Sprag
300M Hardened Input Shaft
300M Hardened Intermediate Shaft
300M Forward Hub
High Capacity Pump Assembly with New Gears
New 5 Pinion Reaction Planetary Gear Set
New 5 Pinion Low Planetary Gear Set
Extra Capacity 2nd Gear Clutch Assembly
Extra Capacity 3rd Gear Super Drum with Wide Heavy Duty Sprag, Race, and Modified Plates
Custom Machine Billet Forward & Direct Drum Pistons
Heavy Duty 2nd Gear Apply Piston
New Shift Solenoids
New EPC Solenoid
New PWM Solenoid
New Manifold Pressure Switch
New Input & Output Speed Senor
New Internal Wiring Harness
Updated Boost Valve
Updated TCC Regulator Valve
Blueprinted Pump & Valve Body
Extra Capacity Cast Aluminum Pan
Lokar Flexible Filler Tube and Stick
Transmission Mount
Stand Alone Computer
30,000 GVW Cooler with Integrated Fan
Full Manual Valve Body: Available at additional cost
Transbrake Valve Body: Available at additional cost
We use a new GM 4L85 Transmission as the platform to build this transmission.


