⚙️ Twisted Pro™ E4OD Performance Transmission

450 HP Rated | Small-Block Gas Applications

Ford E4OD • 1989–1998

5.0L / 302 • 5.8L / 351W

Heavy Towing • Hauling • Work Trucks • Modified Street Trucks

The Twisted Pro™ E4OD is our heavy-duty small-block gas build for trucks that tow, haul, work under load, or run moderate engine upgrades.

The Pro steps up from the Street with increased forward and direct clutch capacity, a 45-element intermediate sprag, new overdrive sprag, TransGo Tugger valve-body setup, and additional pump and lube updates.

Rated up to 450 HP in properly set up small-block gas applications.

🔧 TWISTED PRO™ INTERNAL BUILD

✔️ High-Energy Frictions & New Steels

New high-energy friction plates and new steels throughout.

✔️ Increased Forward Clutch Capacity

Forward clutch set up with increased capacity over the stock configuration.

✔️ Increased Direct Clutch Capacity

Direct clutch set up for additional holding capacity under load.

✔️ Heavy-Duty Intermediate Band

New heavy-duty intermediate band.

✔️ 45-Element Intermediate Sprag

The stock intermediate sprag is replaced with a heavy-duty 45-element sprag.

✔️ New Overdrive Sprag

New overdrive one-way clutch / sprag assembly.

✔️ New Bushing Set

✔️ Thrust Bearings & Washers

Inspected and replaced as required.

✔️ New Transmission Filter

✔️ NEW Transmission Pan with Drain Plug

Every Twisted Pro™ E4OD gets a brand-new transmission pan with drain plug. We do not reuse the old pan.

⚙️ TRANSGO TUGGER VALVE BODY

✔️ TransGo 4R100-HD2 Tugger Reprogramming Kit

The Pro uses the TransGo 4R100-HD2 Tugger, which is built for both E4OD and 4R100 applications.

Includes:

• Pressure regulator boost valve
• Line regulator valve
• Line-to-lube update
• Quick-fill valve
• Low/reverse modulator boost valve
• High-temperature direct clutch seal
• Heavy-duty coast clutch snap ring
• OD spiral-lock snap ring
• Direct clutch sealing updates
• Increased converter feed
• Increased lube flow
• Adjustable shift firmness

✔️ Increased Manual-Low Pressure

The Tugger increases low-clutch holding pressure in manual first for better holding power and engine braking when towing or hauling.

⚡ E4OD SOLENOID PACK

Correct E4OD solenoid pack installed for the year and transmission configuration.

Early and late E4OD solenoid packs differ, so the correct unit is matched to the transmission being built.

🔩 CENTER SUPPORT & CLUTCH FEED UPDATES

✔️ Center Support Inspected

Center support and case area checked for wear.

✔️ Center Support Sealing Updates

✔️ Intermediate Clutch Feed Sealing Updates

✔️ Direct Clutch Feed Sealing Updates

✔️ Updated OD Retaining Hardware

✔️ Low / Reverse Pressure Updates

✔️ Applicable E4OD Factory Updates

⚙️ REMANUFACTURED E4OD PUMP

The pump is completely torn down, inspected and rebuilt.

✔️ Pump Body & Stator Support Inspected

✔️ New Pump Bushing

✔️ Pump Gears Checked for Wear

✔️ Worn Pump Gears Replaced

✔️ Pump Clearances Reset to Specification

✔️ Pressure Regulator Updates

✔️ Converter Feed Updates

✔️ Pump Lube Updates

Early-design E4OD pumps are updated to the later pump design where required.

🔩 HARD PART INSPECTION

All reusable hard parts are cleaned and inspected before assembly, including:

• Forward drum
• Direct drum
• Coast clutch drum
• Center support
• Input shaft
• Intermediate shaft
• Output shaft
• Overdrive planetary
• Forward planetary
• Reverse planetary
• Sun gear and shell

Worn, cracked or damaged hard parts are replaced as required.

🚙 HEAVY-DUTY TORQUE CONVERTER INCLUDED

✔️ 1600–1800 Stall Heavy-Duty Tow Converter

Matched for:

• 5.0L / 302
• 5.8L / 351W
• Towing and hauling
• Work trucks
• Modified street trucks
• Strong lockup
• Stock-style drivability

Final converter configuration is matched to the vehicle, engine and intended use.

❄️ OPTIONAL HIGH-CAPACITY DEEP ALUMINUM COOLING PAN

The Twisted Pro™ comes standard with a NEW transmission pan with drain plug.

For towing, hauling and heavy-duty use, upgrade to our:

High-Capacity Deep Aluminum Cooling Pan

✔️ Adds approximately 5–7.5 quarts of fluid capacity

✔️ Finned cast-aluminum construction

✔️ Magnetic drain plug

✔️ Temperature-sender port where applicable

✔️ Additional fluid capacity for better heat management

Exact capacity and pan configuration vary by application.

🛠️ APPLICATIONS

For small-block gas Ford applications originally equipped with the E4OD.

Ford F-Series

F-150 • F-250 • F-350

• 5.0L / 302
• 5.8L / 351W

Ford Bronco

• 5.0L / 302
• 5.8L / 351W

Ford E-Series / Econoline

E-150 • E-250 • E-350

• 5.0L / 302
• 5.8L / 351W

2WD and 4WD configurations available.

E4OD configurations changed throughout production. Year, engine, electronics, case, output shaft and 2WD/4WD configuration must be verified before ordering.

⚠️ TOWING & COOLER REQUIREMENT

Do not put a fresh E4OD behind a dirty or restricted cooler.

For regular towing, hauling or work-truck use, an appropriately sized auxiliary transmission cooler is required.

The existing cooler and cooler lines must be flushed and checked for proper flow before installation.

If the previous transmission put metal or clutch material through the cooling system, the contaminated cooler must be replaced.

⚙️ TWISTED PRO™ E4OD

450 HP Rated

5.0L • 5.8L • Towing • Hauling • Work Trucks • Modified Street Trucks

Built Tough. Built Twisted.™

One thing I still would not publish as written until you tell me what you're actually doing: the solenoid section. If every Pro gets a NEW solenoid pack, we need to say NEW SOLENOID PACK in big-ass letters. If it's reman/tested, we'll say that instead. That's too expensive and important a part to hide behind “correct pack installed.”