[fpv_gtho]

Well the 5.4 was never the most popular for crate engines, their latest one was the 5L cammer and that only came about cause they could take the 2mm cast iron cylinder sleeves out of the 4.6 alloy block to give it the 94mm bore. The Hurricane was actually going to be a stretched block based on the 5.4, so you have to wonder if it wouldve truly remained a modular family of engines if the 5.4's getting stretched and the 4.6 isnt. If so, i guess the BOSS wouldve had to be killed off anyway cause frankly, the actual 4V heads designed for the 5.4 are pretty shit, apparently worse than the 3V heads available in a standard Falcon and the F-150's