AW70/71 Flexplate to GM Torque Converter Adapter

$275.00 USD

Fit a GM Torque Converter behind your redblock. Instal a TH350/TH400 Transmission. Stop killing AW71.

6 in stock (can be backordered)



If you are looking for a strong automatic transmission, you can now be one step closer to install a GM TH350 or TH400 behind your volvo engine. This adapter help you do so by letting you bolt a GM torque converter on your volvo flexplate. The adapter comes with a centering pilot that goes inside the crankshaft on one side, and a pilot for the TC on the other side. They are made to bolt to any 10.75″ B.C. torque converter for TH350/400 transmsission. 

They are CNC milled out of 6061-T6 aluminum. Each adapter comes with a center pilot, and fine pitch socket head cap screw bolt for bolting the adapter to your flexplate. Bolt for the torque converter are NOT included as they can vary in length and pitch. Socket head cap screw must be used.

Please note that to install a GM automatic transmission into your car, you will still need a block to bellhousing adapter that you can get from gsellstr on the forum.

Updated on 2020/09; More material added around the 3 mounting hole for the torque converter, radius added on the 3 leg for better stress absorption.


  • An Adapter plate
  • 1 Pilot shaft
  • 1 Flat head bolt
  • 4x M10x1.25 Socket Head Cap Screw

Additional information

Weight 5 lbs
Dimensions 12 × 12 × 4 in


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