Ford 351M/400 to Ford Ecoboost V6 6R80/10R80 Transmissions

Looking for an Affordable 6R80 or 10R80 V8 Transmission Alternative? Try the Ecoboost V6 Instead!

Building on a budget or just can't justify the high price of a V8 6R80? We've got a smarter, cost-effective solution—use a Ford Ecoboost V6 transmission instead!

V6 6R80 and 10R80 transmissions are not only more affordable and widely available, but they also benefit from excellent aftermarket support. While the V6 and V8 versions share many components, there are two key differences to be aware of:

1. Bellhousing Shape – The V6 and V8 have different bellhousing profiles.

2. Rear Output Bearing – The V6 uses a heavy-duty ball bearing, while the V8 features a roller bearing. Why does this matter? The ball bearing in the V6 provides improved support due to the higher low-end torque of Ecoboost V6 engines—making it an ideal fit for performance or towing applications.

Functionally, these transmissions are nearly identical otherwise, making the V6 version a great option for many builds.

Important Fitment Note: The 6R80 and 10R80 use different torque converter spacing. Be sure to order the correct adapter kit for your transmission.

Now Featuring Our Slimmest Adapter Plate Yet — Just 0.50" Thick!

Our latest adapter plate design is thinner than ever, improving fitment and reducing installation hassle. At just half an inch thick, it offers:

• Better clearance for tight engine bays

• Reduced risk of firewall interference

• No need to modify your bellhousing or engine

Plus, it includes 11 starter clocking positions to help you avoid obstacles and simplify mounting in custom setups.

Compatible With:

This kit works with Ford V6 Ecoboost transmissions from the 2.7L, 3.0L, 3.5L, and 3.7L engines found in:

• F-150

• Mustang

• Larger Ford/Lincoln SUVs and trucks

It retains the factory torque converter with the 11.4" bolt circle pattern and fits standard 164-tooth (14.25" diameter) flexplates. No guesswork, no custom parts—just bolt-on simplicity using proven, off-the-shelf components.

Get the performance and reliability you need—without breaking the bank. Upgrade your build with confidence using our Ecoboost V6 adapter kit today!

Note: The 6R80 and 10R80 have different torque converter spacing, so be sure to order the correct kit for your setup.

Kit Components:
1ea - Adapter Plate
1ea - Crank Spacer
2ea - Dowel Pins
1ea - Dust/Inspection Cover
1ea - Block Plate
1ea - High Torque Mini Starter
1ea - Hardware Kit

Performance Adapters is not responsible for return shipping. Additional return information can be found in our policy pages. If you have any additional questions please contact us call, text or email.