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Performance Adapters

GM/Chevy Atlas 4200 (GM4200) to Chevy V8 Transmission Adapter Kit

GM/Chevy Atlas 4200 (GM4200) to Chevy V8 Transmission Adapter Kit

Regular price $675.00 USD
Regular price Sale price $675.00 USD
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ADDITIONAL PRODUCTS AVAILABLE:  If you are planning to purchase a Shift Controller option with your Adapter Kit, please see the link below to add the Throttle-position Sensor (TPS) Adapter Kit to suit your application.

TRANSMISSION STAND-ALONE CONTROLLERS & TPS ADAPTER KITS - ADD-TO-ORDER HERE

 

KIT OVERVIEW

Our GM Atlas 4200 to Chevy V8 Transmission Adapter Kit is finally here! After extensive development, we're proud to release the first in a series of performance kits designed around the powerful and often overlooked GM 4200 (Vortec/Atlas) inline-6 engine.

This adapter kit allows you to mate your 4200 engine to a wide range of GM V8 automatic transmissions with ease and reliability. Perfect for hot rods, off-road builds, drift cars, or any custom swap, this solution simplifies your drivetrain while keeping critical components easy to source and replace.

Key Features

  • CNC-machined adapter plate for precise fitment

  • Retains factory 4200 flexplate for easier maintenance and parts availability

  • Works with factory GM V8 torque converter

  • Adapter plate is pre-drilled and tapped for:

    • GM V8 Standard Pattern (SBC/BBC/LS)

    • GM LT Gen V Pattern

    • BOP V8 Pattern (Buick, Oldsmobile, Pontiac)

What’s Included

  • CNC-Machined Adapter Plate

  • Starter

  • Starter Adapter Mount

  • Longer Hollow Dowel Pins

  • Torque Converter Snout Adapter

  • All necessary hardware for installation

Note: Kit components are also available for individual purchase. Contact us for details.


Compatibility

  • Engine: GM 4200 (Vortec/Atlas I6)

  • Automatic transmissions: Most GM V8 automatics including TH400, 4L60E, 4L80E, 6L80E, and more.

  • Manual Transmission: Most GM V8 manual transmissions. 
  • Torque Converter: Works with factory GM V8 converter

  • Flexplate: Retains factory GM 4200 flexplate

  • Flywheel is SFI rated and accepts 10 & 10.5" clutch kits. 

Ready to unleash the potential of your GM 4200 swap? This adapter kit is the missing link to bring your build to life.

Order today and start your next project with confidence.

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