I have a 2010, f150, 4.6, and my brother has a 2002, f150, 4.6, that has 100,000 miles on it very well maintained, but the frame rotted out and he wants to scrap the truck. What I want to know is, can his 2002 motor be interchanged into my 2010 motor ? I wanted to know, so I could buy it to have a back up motor if it could be swapped.