I have no way of knowing.
Maybe you can use my previous drawing I posted and base it on a LA or B-RB engine setup to determine if its cut to fit in the crank converter hub bearing(?).
Several editions have been released. You see them available on Ebay occasionally........
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A b-body aluminum case for some reference........
FOR SALE - RARE-Aluminum 18 Spline 308 Big Bearing Hemi 4 Speed Case and Tail Housing-Build your own Light Weight 4 Speed B & E Body
