Help! Small block 360 has a knocking sound

Thats the plan stan, in fact I have a 727 that I am going to freshen up to put in the car instead of the 904 that is in it now. So I was already planning on pulling the tranny at some point, I guess now I have a reason.

If thats the case you must be relieved to know its a trany issue !
Whew!!!!