Advance Adapters 712500A LS Engine to GM TH350, 700R4, and 200R4 Transmission Adapter Kit

The Advance Adapters 712500A transmission adapter kit connects a GM LS-series engine to a GM TH350, 700R4, or 200R4 automatic transmission. Designed for drivetrain conversions and engine swaps, this kit provides the components needed to properly mate the LS engine and transmission while helping simplify installation and maintain reliable power transfer.
Included components feature a flexplate, flexplate bolts, and a crank spacer selected for this specific engine and transmission combination. Using the correct adapter components helps address differences in crankshaft spacing and bellhousing alignment, supporting proper fitment between the LS-series engine and compatible GM automatic transmissions. The kit is intended for builders who want a focused solution for adapting proven GM transmission platforms to newer LS engine applications.
The Advance Adapters 712500A is suitable for custom vehicles, performance projects, off-road builds, and other applications requiring LS-to-GM automatic transmission compatibility. Verify engine, transmission, starter, and vehicle application details before installation to ensure the selected components match the intended drivetrain configuration. Follow the installation instructions and use appropriate torque specifications for all fasteners.
This kit is supplied as an application-specific transmission adapter solution and does not include unrelated drivetrain hardware or vehicle-specific installation components. The Advance Adapters brand is recognized for developing conversion products that help support practical engine and transmission combinations. The 712500A kit is air restricted: No, and truck freight only: No.

Features:

• Application: Adapts a GM LS-series engine to a GM TH350, 700R4, or 200R4 automatic transmission

• Included components: Flexplate, flexplate bolts, and crank spacer

• Design: Application-specific components help support proper engine-to-transmission alignment

• Use: Suitable for engine swaps, custom vehicles, performance builds, and off-road projects

• Brand and part number: Advance Adapters 712500A