🔥 Twisted Pro™ Big Block E4OD Performance Transmission – 550 HP Rated

BIG BLOCK GAS APPLICATIONS ONLY

Ford E4OD • 1989–1997 • 7.5L / 460 EFI

Heavy-Duty Towing • Performance Street • Work Truck • Commercial & RV Duty

The Twisted Pro™ Big Block E4OD Performance Transmission is engineered specifically for the extreme torque output, heavy vehicle weight, and sustained load demands of Ford 7.5L / 460 big-block platforms.

This is NOT a stock rebuild.

Designed for work trucks, RVs, lifted trucks, towing rigs, fleet vehicles, and street-driven 460 builds where stock or lightly rebuilt E4OD units repeatedly fail under load.

Twisted Pro™ incorporates upgraded clutch capacity, stronger friction materials, reinforced hard parts, corrected hydraulics, and critical pump improvements to survive real-world big-block abuse — while maintaining dependable automatic shift operation for daily and commercial use.

🔥 IDEAL APPLICATIONS

Perfect for:

• Big-block work trucks
• Heavy towing & hauling
• RV & motorhome chassis
• Lifted trucks with oversized tires
• Street-driven 460 builds
• Commercial & fleet use
• Utility and service vehicles

Rated to handle up to 550 HP when properly matched to vehicle setup, cooling system, and intended use.

🔧 TWISTED PRO™ BIG BLOCK OVERHAUL PACKAGE

✔️ High-Energy Performance Clutch Packs (UPGRADED)

• Increased torque-holding capability
• Designed specifically for big-block heat and towing loads
• Improved clutch durability under sustained heavy load

✔️ Increased Clutch Capacity Configuration

• Additional clutch capacity in critical apply areas
• Improved holding power during towing and hauling
• Increased durability under heavy-load operation

✔️ Kolene® Performance Steel Kit (UPGRADED)

• Heat-treated steels for improved durability
• Cleaner shifts and improved heat resistance
• Extended life under towing and commercial use

✔️ Heavy-Duty Master Overhaul Kit

Includes premium upgraded:

• Friction materials
• Seals & gaskets
• Lip seals
• Sealing rings

✔️ HD Big-Block Bushing Kit

• Corrects internal hydraulic leakage
• Improves converter charge efficiency
• Stabilizes pressure integrity in worn E4OD cores

✔️ Heavy-Duty Thrust Bearing & Washer Set

• Ensures proper geartrain alignment
• Protects against torque-shock loads
• Improves long-term durability

✔️ Heavy-Duty Intermediate Band System (UPGRADED)

• Increased band holding capacity
• Improved 2–3 shift durability
• Designed for towing and higher-load operation

✔️ Updated Internal Electronics Package

• New internal harness
• Updated solenoid system
• Corrects common aging E4OD electrical failures

⚙️ TWISTED™ VALVE BODY — MODIFIED & UPDATED THE TWISTED™ WAY

🔥 Twisted™ Big-Block Performance Valve Body Calibration

• Custom hydraulic recalibration performed the Twisted™ way
• Sharper downshifts and improved load response
• Corrected shift timing for towing and street performance
• Increased clutch apply control under big-block torque
• Big-block-specific line-pressure and shift strategy calibration
• Improved line-pressure stability under load

✔️ Reinforced Heavy-Duty EPC Solenoid

✔️ New Shift Solenoids

✔️ Updated Pressure Manifold Assembly (Twisted™ Verified)

✔️ TransGo® HD hydraulic correction components installed

This is NOT a stock or generic remanufactured valve body.

Each valve body is modified, updated, vacuum tested, and calibrated in-house to Twisted Torque™ performance standards.

🔩 BIG BLOCK HARD-PART DURABILITY PACKAGE

Internal upgrades that big-block trucks MUST have:

✔️ Upgraded heavy-duty center support

✔️ Upgraded mechanical diode intermediate sprag assembly

✔️ Reinforced forward drum components

✔️ Heavy-duty reverse drum

✔️ HD reaction & geartrain components

✔️ Updated reverse servo & apply components

✔️ Reinforced pump stator support

✔️ Upgraded low roller & spring set

✔️ All hard parts professionally inspected & updated as needed

Including:

• Planetaries
• Drums
• Shafts
• Reaction components

All inspected for scoring, fatigue, spline wear, and heavy-load wear before final assembly.

These upgrades dramatically improve durability and reliability under towing, hauling, oversized tire, and moderate performance conditions.

🚗💨 TWISTED™-MODIFIED PUMP ASSEMBLY

🔥 Pump Assembly Modified & Updated the Twisted™ Way

✔️ Remanufactured pump body

✔️ Hardened pump rings

✔️ Updated pump gears

✔️ Corrected pressure-regulator circuit

✔️ Updated heavy-duty pump slide spring

✔️ Twisted™-specific pressure calibration

✔️ Stabilized line-pressure clearances

Stable line pressure is critical for big-block towing reliability and clutch life under load.

Each pump is modified, blueprinted, and verified for heavy-duty hydraulic stability.

🚙💨 TORQUE CONVERTER INCLUDED — BIG BLOCK SPEC

✔️ 1800–2000 Stall Heavy-Duty Tow / Performance Converter Included

Designed specifically for:

• Big-block torque curves
• Heavy towing & hauling
• Lifted trucks with larger tires
• RV & commercial chassis
• Heavy-duty street performance

Provides improved throttle response, stronger lock-up performance, and increased towing durability under load.

🔧 Billet converter upgrades available for higher-horsepower or aggressive-use applications.

❗ NOT interchangeable with small-block E4OD converters.

🌡️ HEAT MANAGEMENT REQUIREMENTS

For ALL big-block E4OD applications:

🧊 External auxiliary transmission cooler REQUIRED

🧊 Cooler and transmission lines must be flushed or replaced

🧊 Deep transmission pan strongly recommended

🧊 Additional cooling strongly recommended for RV, towing, oversized tire, and commercial applications

🧊 Transmission temperature gauge strongly recommended

⚠️ Proper engine cooling and transmission cooling systems are critical for transmission longevity in RV and towing applications.

Heat is the #1 enemy of E4OD transmission life under towing and sustained heavy-load conditions.

🛠 FITMENT — BIG BLOCK GAS ONLY

Designed for 1989–1997 Ford vehicles equipped with 7.5L / 460 EFI engines, including:

• F-250 / F-350
• F-Super Duty chassis
• E-350 / E-450 vans
• RV & motorhome platforms
• Commercial & utility applications

⚠️ VEHICLE INFORMATION REQUIRED BEFORE SHIPMENT

Customer must specify:

• Year
• 2WD or 4x4
• Tire size
• Gear ratio
• Intended towing load
• Vehicle use

This transmission is designed specifically for BIG BLOCK GAS applications ONLY.