Help Identifying an 833

I came across this trans on my local CL, he has just about every part needed (trans, bellhousing, clutch, z bar, pistol grip shifter...) to swap it into my Duster and the price is pretty reasonable. He claims it is out of a B body with a 440, but the trans sure looks like an A body one to me.

I've searched online quite a bit, all I could find is that it is from April 1972. Is there any other info you guys can get from these numbers? Would this work behind a 550 horse 440?


00m0m_e7e2XuiyLSz_600x450.jpg 00D0D_jKYEbcldFLu_600x450.jpg 7213.jpeg