Originally Posted by
bitemark46
Not all 5.4's came with a forged crank. All lightnings yes but some in your standard F250's/150's didn't.
I edited my post above to reflect the info coming to the surface here. Every 5.4 motor I had my hands in had a steel crank, and I was told they all did, but that may not be the case. Good to know.
Brian
EFI-Unlimited