I can tell you I dont like the v6 its overworked and under powered.
LOL......just LOL......the 3.5 eco boost makes the V8 in every current ford vehicle except the Shelby gt350 and gt 500 look underpowered.
the added weight and cost of the 2 v8's in question make them not a good candidate for an off road truck.
the supercharged V8 from the gt 500 would add $10k to the cost of an already $75k truck....no way the ford bean counters let that happen.