SO WHAT IS THE ENGINE ID NUMBER? Yes, I'm yelling. "Steve" didn't build the engine, I do not conclude that he knows exactly what it is. So get the freakin' number!

THE TORQUE CONVERTER YOU SHOWED US IS FOR AN INTERNALLY BALANCED ENGINE!
Again, yes, I'm yelling. You don't seem to be paying a lot of attention to what people are saying.

The engine ID number will confirm that it's a mid-70's 360 or whatever it is.

If that's the case it needs the harmonic damper/balancer from a 360 (not 5.9 Mag) hanging off the front of the engine, and an externally balanced torque converter assembly hanging off the back.

The converter assembly can either be a neutral balanced converter with an unbalanced flexplate, or an externally balanced converter with neutral flexplate.

R.