
Twisted Punisher™ E4OD / 4R100 600HP Small Block Ford Transmission
Ford E4OD / 4R100 • Small-Block Gas
High Performance • Modified Trucks • Heavy Towing • Off-Road
The Twisted Punisher™ E4OD / 4R100 is our 600 HP small-block gas build.
The Punisher steps up from the Street and Pro with increased clutch capacity, 6-pinion steel planetary, steel overdrive planetary, hardened input shaft, 45-element intermediate sprag, new overdrive sprag, E4OD-HD2 performance valve-body setup and billet lockup converter.
Built for modified street trucks, higher-horsepower small-block combinations and trucks that see hard use.
New high-energy performance frictions and new steels throughout.
Forward clutch set up with 5 friction plates for increased holding capacity.
Direct clutch set up with 6 friction plates.
Intermediate clutch set up for increased capacity over the stock configuration.
Pressure plates machined where required to obtain the Punisher clutch-stack configuration while maintaining correct clutch clearance.
Every Twisted Punisher™ comes with a brand-new transmission pan with drain plug.
We do not reuse the old pan.
Replaces the lighter stock planetary configuration with a 6-pinion steel assembly.
Steel overdrive planetary installed for increased strength in the OD section.
Upgraded input shaft for increased torque and shock-load capacity.
Heavy-duty 45-element intermediate sprag replaces the standard sprag configuration.
New overdrive one-way clutch / sprag assembly.
Center support and case contact area are inspected for wear.
Applicable center-support updates are performed to reduce support movement, case wear and clutch-feed leakage.
Updated spiral-lock retaining ring installed in the overdrive section.
Torrington bearings and thrust washers inspected and replaced or updated as required.
The Punisher uses the TransGo E4OD-HD2 performance setup.
This is a different calibration than the Street SK E4OD and the Pro Tugger setup.
The E4OD-HD2 includes:
✔️ Pressure regulator boost valve
✔️ Line regulator valve
✔️ 1-2 shift valve spring
✔️ 2-3 shift valve
✔️ Calibration plate for shift-firmness adjustment
✔️ Line-to-lube update
✔️ High-temperature direct clutch seal
✔️ Updated direct clutch outer seal
✔️ Heavy-duty coast-clutch snap ring
✔️ OD housing spiral-lock snap ring
✔️ Converter feed updates
The valve body is set up for shorter, firmer performance shifts while retaining automatic operation in Drive.
On applicable 1989–1995 E4OD applications, the E4OD-HD2 allows the transmission to hold first and second gear when manually selected while retaining automatic upshifts in Drive.
Gear Command is not available on 1996-up applications.
The correct E4OD / 4R100 solenoid pack is matched to the year and transmission configuration.
Solenoid operation is checked during the build and failed or out-of-spec units are replaced.
The pump is completely torn down, inspected and rebuilt.
Early E4OD pump assemblies are updated to the later pump design where required.
The center support and case are checked closely during teardown.
Movement between the E4OD / 4R100 center support and case is a known wear area. The support and case are checked and corrected during the build rather than simply installing new clutches into a worn case.
In addition to the Punisher hard-part upgrades, all reusable parts are cleaned and checked before assembly.
We inspect:
✔️ Forward drum
✔️ Direct drum
✔️ Coast clutch drum
✔️ Center support
✔️ Intermediate shaft
✔️ Output shaft
✔️ Remaining planetary assemblies
✔️ Sun gear & shell
✔️ Overdrive section
Worn, cracked or damaged hard parts are replaced.
The Punisher includes a billet single-disc lockup converter matched to the vehicle and engine combination.
Built for:
Stall speed is matched to the engine, vehicle weight, rear gearing, tire size and intended use.
For higher-torque combinations, boosted engines, aggressive tuning, heavy towing or severe-duty use, a billet triple-disc lockup converter is available as an upgrade.
Every Punisher comes standard with a NEW transmission pan with drain plug.
For customers who want additional fluid capacity, upgrade to our:
✔️ 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 control
Exact capacity and pan configuration vary by application.
Optional upgrade at additional cost.
The Twisted Punisher™ is built for compatible small-block gas E4OD / 4R100 applications.
F-150 • F-250 • F-350
5.0L / 302
5.8L / 351W
E-150 • E-250 • E-350
5.0L / 302
5.8L / 351W
Compatible modified Windsor-based combinations
2WD • 4WD
E4OD and 4R100 transmissions changed throughout production. Year, engine, case, electronics, output shaft and vehicle configuration must be verified before ordering.
The existing cooler and cooler lines must be professionally flushed and checked for unrestricted flow before installation.
If the previous transmission put metal or clutch material into the cooling system, the contaminated cooler must be replaced.
Do not put a fresh Punisher behind a dirty or restricted cooler.
Performance Trucks • Modified Small Blocks • Towing & Hauling • Off-Road
Built Tough. Built Twisted.™