Hey Guys,

My dad is currently working on a 1979 Ford F-150, 4x4 pickup. Well,
after the truck was bought and he started to work on it he found out
that the engine is not the original one that is supposed to be in it.
He has it running great but, the problem he is having now is that
everytime he buys an exaust manifold pipe, it won't fit. If you hook
the one side up, it's about 3 inches too short on the other side. He
has went through at least three different pipes and none of them will
work. He's begining to think that this engine here is from an 80's
truck.

Now, what he would like to know is, How can you tell the year of the
engine by looking at the serial number?
Here is the serial number, E3AE6015-BA1

I've looked online and did a search on here but, can't come up with
much of anything.

Can you help!

Thanks!