Torque converter

if the trans is a 69...then any converter that fits that trans will work...but but....

are you aware of the external balance required of the 360 magnum...they are not the same as a LA 360.......best to find a 5.9 magnum flexplate.....and remember the balancer must be for a 5.9 magnum...
I've got the original flexplate that was on motor. everyone says it has to be neutral balance, like this one.