š„ Twisted PROā¢ 4L60E Performance Transmission (450ā550 HP)
Twisted PROā¢ 4L60E rated 500ā550 HP with performance converter
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Product Description
š„ Twisted PROā¢ 4L60E Performance Transmission ā Up to 550 HP
1998ā2013 GM 4L60E / 4L65E / 4L70E ā¢ Built to Order
550 HP Rated* ā¢ Super Duty Billet Cover Torque Converter INCLUDED ā¢ Stock Stall
More Than Streetā¢. Built for Modified Street Performance. Built the Twisted Torqueā¢ Way.
The Twisted PROā¢ 4L60E is the next step above our Streetā¢ build for modified GM cars, trucks and SUVs that require increased clutch capacity, stronger hard parts and a more aggressive hydraulic calibration while maintaining street drivability.
Every PROā¢ is completely disassembled, cleaned, inspected and built in-house. The build focuses on the areas that matter in a performance 4L60E: the 3-4 clutch, 2-4 band and servo, sun shell, planetary geartrain, input sprag, pump, valve body and line-pressure system.
Rated for up to 550 horsepower* in properly matched street-performance applications.
š£ WHAT MAKES TWISTED PROā¢ DIFFERENT?
PROā¢ is not Streetā¢ with a different sticker.
The build steps up with:
ā Increased clutch capacity
ā Wide carbon 2-4 band
ā SonnaxĀ® Super Hold servo
ā BeastĀ® heavy-duty sun shell
ā 5-pinion planetary gearset
ā TransGo 4L60E-HD2 Reprogramming Kitā¢
ā More aggressive hydraulic and pressure calibration
ā Super Duty billet cover torque converter
ā Stock stall for street drivability
The goal is simple: increase the capacity of the areas that fail under increased torque without turning the transmission into an unpleasant street transmission.
š§ TWISTED PROā¢ BUILD
š„ HIGH-CAPACITY CLUTCH SYSTEM
ā High-Energy Clutches & KoleneĀ® Steels
High-energy friction material and KoleneĀ® steels are used throughout the applicable clutch packs for increased heat resistance and holding capacity.
ā High-Capacity 3-4 Clutch Pack
The 3-4 clutch is one of the most critical areas of any performance 4L60E.
The input housing, apply surfaces, backing arrangement and clutch pack are inspected and assembled for the PROā¢ build with clutch clearance set during assembly.
We do not rely on friction count alone. Clutch clearance, apply pressure, hydraulic sealing and backing support all matter.
šŖ PROā¢ HARD PARTS
ā BeastĀ® Heavy-Duty Sun Shell
The factory-style sun shell is a known weak point in the 4L60E. PROā¢ receives the BeastĀ® heavy-duty shell for increased strength in the reaction-drive system.
ā 5-Pinion Front Planetary Gearset
PROā¢ uses a 5-pinion front planetary configuration for increased load distribution through the geartrain.
ā Heavy-Duty Input Sprag Assembly
The input sprag and related races are inspected as part of the PROā¢ build and replaced/upgraded as required for the application.
ā OE Hard Parts Inspected & Measured
Input drum, reverse-input drum, shafts, rear planetary, carriers, ring gears, hubs and other hard parts are cleaned, inspected and measured.
Good OE hard parts are retained when they meet our build specifications.
Anything that doesn't meet spec gets replaced.
ā OPTIONAL REAR 5-PINION PLANETARY UPGRADE
A matching 5-pinion rear planetary assembly is available for customers who want additional geartrain load distribution for more demanding applications.
Recommended for heavier vehicles, harder street use, towing and customers looking to further strengthen the geartrain.
š§ WIDE CARBON BAND & SONNAXĀ® SERVO
ā Wide Carbon High-Performance 2-4 Band
The wider carbon band increases available friction area in the 2nd and 4th gear apply system and is built for the increased load of the PROā¢ package.
ā SonnaxĀ® Super Hold Servo
The PROā¢ build steps beyond the Streetā¢ Corvette-style servo with a SonnaxĀ® Super Hold servo for increased band apply area and more positive band application.
ā Band Clearance & Apply Checked During Assembly
The servo, band, drum and apply system are checked as a complete system rather than treating the servo as a bolt-on performance part.
āļø TRANSGO 4L60E-HD2 REPROGRAMMING KITā¢
Every Twisted PROā¢ receives the TransGo 4L60E-HD2 Reprogramming Kitā¢ as part of the hydraulic build.
This is a major step above the Stage 1 / Streetā¢ hydraulic calibration.
The HD2 package addresses and recalibrates multiple areas of the 4L60E hydraulic system for increased clutch and band holding capacity.
PROā¢ hydraulic work includes:
ā TransGo 4L60E-HD2 Reprogramming Kitā¢
ā .500" Boost Valve
ā Hardened TCC Regulator / Isolator Valve System
ā Pressure Regulator Calibration
ā Accumulator Recalibration
ā 3-4 Clutch Return & Feed Calibration
ā 2-4 Band Feed Calibration
ā Forward Clutch Feed Calibration
ā Reconditioned & Recalibrated Valve Body
The goal is not simply to make the transmission shift harder.
The goal is proper pressure rise, clean clutch and band application, reduced hydraulic leakage and controlled performance shift timing.
š„ PROā¢ PUMP & PRESSURE SYSTEM
The pump is completely disassembled and inspected during the build.
ā Pump Body & Stator Inspected
ā Rotor, Slide & Vanes Inspected
ā Hardened Pump Rings
ā Pressure Regulator Bore & Valve Operation Checked
ā Pump Bushing & Sealing Areas Serviced
ā Pump Clearances Checked During Assembly
ā TransGo HD2 Pump / Pressure Modifications Applied
A performance clutch pack cannot survive without proper apply pressure. The pump, boost system and valve body are built as part of the same hydraulic package.
š NEW INTERNAL ELECTRONICS
PROā¢ receives new internal electronic controls rather than sending a performance transmission out with questionable used electronics.
ā New EPC / Pressure Control Solenoid
ā New Shift Solenoids
ā New Internal Wiring Harness
ā New Pressure Manifold / Switch Assembly
ā Complete Electrical Inspection Prior to Final Assembly
š„ SUPER DUTY BILLET COVER TORQUE CONVERTER ā INCLUDED
Every Twisted PROā¢ includes a Super Duty billet cover lock-up torque converter.
STOCK STALL
PROā¢ retains stock stall speed unless a different converter is specifically selected for the application.
Why?
Because a performance transmission does not automatically need a high-stall converter.
Stock stall maintains:
ā Predictable engagement
ā Strong street manners
ā Daily-driver drivability
ā Proper towing characteristics
ā Compatibility with a wide range of stock and modified combinations
The Super Duty billet cover gives the converter a stronger foundation while retaining the street characteristics expected from the vehicle.
The converter and transmission are matched as a package.
š§© COMPLETE PROā¢ OVERHAUL
ā Complete Bushing Replacement
ā Complete Gasket & Seal Kit
ā Complete Sealing-Ring Service
ā Bearings & Torringtons Inspected and Replaced as Required
ā New Transmission Filter
ā Clutch & Band Clearances Checked During Assembly
ā Final Clutch Air-Check Verification
ā Final Inspection Prior to Shipment
āļø WHAT TWISTED PROā¢ IS BUILT FOR
PROā¢ is designed for:
š„ Cammed LS combinations
š„ Modified Vortec applications
š„ High-performance street cars
š„ Performance trucks and SUVs
š„ Street / strip vehicles
š„ Mild boosted combinations
š„ Larger tire and gear combinations
š„ Customers exceeding the intended use of Twisted Streetā¢
š„ Applications requiring stronger hard parts and increased hydraulic capacity
Rated up to 550 HP.*
Horsepower alone does not determine which transmission you need.
Vehicle weight, engine torque, tire size, rear gearing, converter requirements, tuning, towing, launch characteristics and intended use all matter.
š§ BUILT TO ORDER
We do not pull a generic ā550 HP transmissionā off a shelf and hope it fits.
Every Twisted PROā¢ is matched to the application.
We verify:
ā Year, Make & Model
ā Engine Combination
ā Engine Modifications
ā 2WD or 4WD
ā 4L60E / 4L65E / 4L70E Configuration
ā Electronics Compatibility
ā Speed Sensor Configuration
ā Output Shaft & Tailhousing Configuration
ā Tire Size & Rear Gear Ratio
ā Intended Vehicle Use
Tell us what you're building. We'll build the transmission around the application.
āļø KEEP THE 4L60E COOL
Heat kills automatic transmissions.
A properly sized auxiliary transmission cooler is strongly recommended for performance applications, towing, larger vehicles and vehicles operated in high ambient temperatures.
The cooler must be properly sized and installed with unrestricted flow.
Do not try to solve an overheating problem with a colder thermostat or a bigger parts list. Find the cause and keep the transmission supplied with clean, properly cooled fluid.
ā ļø PLATFORM LIMIT
The Twisted PROā¢ is rated for up to 550 horsepower* in properly matched street-performance applications.
That does not mean every 550 HP vehicle belongs in PROā¢.
A 550 HP lightweight street car on street tires is not the same load as a heavy truck on large tires, a boosted application launching on a sticky tire, or a vehicle repeatedly drag raced.
For aggressive racing, heavier combinations, higher torque output or applications beyond the intended PROā¢ operating range, step up to:
š Twisted Punisherā¢
or
ā ļø Twisted Executionerā¢
ā WHY CHOOSE TWISTED PROā¢?
ā Up to 550 HP Twisted Rating*
ā High-Energy Clutches & KoleneĀ® Steels
ā High-Capacity 3-4 Clutch Build
ā Wide Carbon 2-4 Band
ā SonnaxĀ® Super Hold Servo
ā BeastĀ® Heavy-Duty Sun Shell
ā 5-Pinion Front Planetary
ā TransGo 4L60E-HD2 Reprogramming Kitā¢
ā .500" Boost Valve
ā Reconditioned & Recalibrated Valve Body
ā Performance Pump & Pressure Calibration
ā New Internal Electronics
ā Super Duty Billet Cover Torque Converter
ā Stock Stall
ā Built to Order
ā Built In-House
ā 3-Year Warranty / Unlimited Mileage*
ā Built by Transmission People with 30+ Years Behind the Bench
š 833-858-9612
Twisted Torqueā¢ ā Check the Build. Check the Parts. Build It for the Application.