
Want to put a traditional GM automatic transmission behind a Ford Modular or Coyote engine?
The Performance Adapters PAFO605 allows compatible Ford Modular-family engines to be paired with traditional Chevy/GM and compatible BOP-pattern automatic transmissions.
This opens up serious drivetrain possibilities for Coyote swaps, Modular-powered hot rods, classic Ford restomods, trucks, race cars and custom performance builds.
Manufactured by Performance Adapters. Available from Twisted Torque.
Buy the adapter by itself or pair it with a Twisted Torque-built TH350, TH400, 700R4 or compatible 4L80E transmission to build the complete drivetrain combination.
Designed for compatible Ford Modular-family engines including:
✔️ 4.6L Modular V8
✔️ 5.0L Coyote V8
✔️ 5.2L Modular / Coyote-Family V8
✔️ 5.4L Modular V8
✔️ 6.8L Modular V10
Performance Adapters identifies the following GM transmission families for PAFO605:
✔️ TH350
✔️ TH400
✔️ 700R4
✔️ 4L80 / 4L80E
✔️ Compatible Buick / Oldsmobile / Pontiac BOP-Pattern Automatic Transmissions
The Performance Adapters PAFO605 kit includes:
✔️ 1/2-Inch Billet Aluminum Adapter Plate
✔️ Crankshaft Spacer
✔️ Torque Converter Snout Adapter
✔️ SFI-Certified Flexplate
✔️ GM High-Torque Mini Starter
✔️ Complete Installation Hardware
✔️ Installation Instructions
The PAFO605 uses a precision-machined 1/2-inch billet aluminum adapter plate engineered to mate the supported Ford Modular/Coyote engine to the appropriate GM automatic transmission.
The adapter retains the complete GM transmission bellhousing and is designed so cutting or modifying the bellhousing is not required for the standard supported applications.
The included crankshaft spacer and converter snout adapter establish the required drivetrain geometry between the Ford engine and GM transmission.
PAFO605 includes an SFI-certified flexplate as part of the conversion system.
The correct flexplate and crankshaft configuration are critical to the installation, which is why PAFO605 is offered with different crank-pattern selections.
PAFO605 is available for:
Verify the actual crankshaft bolt pattern before ordering.
Do not select the crank pattern based solely on engine displacement or vehicle year.
Crate engines, replacement engines, performance engines and custom rotating assemblies can differ from the configuration originally installed in the vehicle.
The PAFO605 includes the required GM high-torque mini starter.
The starter is incorporated into the adapter system and uses an off-the-shelf design, making replacement easier should service ever be required.
PAFO605 should not be advertised or ordered as a universal adapter for:
4L60
4L60E
4L65E
4L70E
Performance Adapters specifically warns that only certain 4L60 configurations will work with this adapter system.
One of the critical differences is the transmission and torque-converter configuration, including the early 298mm versus later 300mm design.
Later-model 4L60-family transmissions cannot simply be assumed compatible because they share the general GM transmission family.
For example, do not assume a later 4L65E can be installed behind a Ford 5.4L simply by purchasing PAFO605.
We will need the exact transmission year, model, original application and converter/input configuration before determining whether the combination is appropriate.
Transmission model names alone do not always tell the entire story.
GM produced multiple case, input, converter and application configurations throughout these transmission families.
If you're working with a later-model donor transmission or are unsure exactly what transmission you have, contact Twisted Torque before ordering.
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