Manufacturer's Part Number:
Summit Racing Part Number:
Flexplate Adapter Material:
Flexplate Adapter Finish:
Fits engines with 8-bolt crankshaft flange only.
Choose In-store pick-up (OH, GA, NV) on our web site.
These J.W. Performance flexplate adapter kits are designed to fit your engine's crankshaft and allow for the use of a GM TH400, TH350, or Powerglide transmission. They are ideal for drag race, Circle Track, or any other form of motorsports that relies heavily on automatic transmissions. The adapters are made from steel and include the longer Grade 8 mounting bolts to install your new flexplate. They are made in the USA.