Interchangeable truck parts?

Answer 1

I AM WANTING TO PUT A MAGNUM V-6 IN MY 89 DAKOTA 3.9, I HAVE BEEN TOLD TOE HOOD WILL NOT WORK.  IF I REPLACE THE HOOD WILL I BE ABLE TO REPLACE THE 3.9 WITH THE MAGNUM V-6 OR ARE THERE OTHER CHANGES TO BE MADE?