I have an 01 f150 with 5.4 that has 293,000 miles on it. I have been offered an 08 5.4 with 40,000 miles on it for free out of a wrecked f250. I have pretty much determined that there are a lot of changes made from those years---- 3V heads, cam phasers, etc. My question is, Are the short blocks the same? Can I recondition my 01 heads and install on the 08 short block utilizing my 01 cams, timing components, and intake setup? I know of several changes made, but if the blocks are the same, I would think I could swap heads, intakes, and timing components to create and engine with far fewer miles on it. Are there any problems I could face in doing this?