Curt, I see the fan is low on the radiator .
My new 54, it also looks like this, with the, I believe, 59 engine dropped in.
I have no idea if the shaft was shortened, or what.
Will this be subject to inadequate cooling?
Charley
If your radiator is in the original position you have a short shaft (modified) pump. You may have no cooling issues as is but if the temperature creeps up while sitting in traffic a 216 pump with the relocation plate should cure it.