5/16 torque converter bolts

512Stroker said

Are you sure the car had a BBM in it?
That looks like the setup that is on my 340.
Different 727 trans SBM vs BBM not the same.

Click to expand...

This is definitively a 727 for a big block. Plus the plate fits the converter, and the crankshaft. I'll check to see if the converter fits into the tranny splines ok.