Griffin Rad fitment issues

Ivied searched but with no real results.

So I'm finally in with my semi-built 383 in my 67 cuda. Buttoning everything up, etc. I went to put my nice Griffin rad with electric fan setup in is morning at 1am, and realized there's no Effing way. I was assured like 10 times by the griffin group that this would fit with my setup. I'm irritated as this is the exact situation I was trying to avoid. ( the engine was out when I ordered so I had no way of knowing exact measurements.)

Any suggestions?? I only have 5" of clearance, but the rad/fan setup is over 6" thick ..
Sincerely,
Bummed out in CO.