With motor Technology a new bronco with the Eco boost V6 will have more power that 90% of the V8 Powered Broncos on here, I wish my 351W had those numbers.... Don’t get me wrong I love the 351W it has more power than my bronco needs but as built as i think it is its not producing these numbers...look at these numbers that are from Fords Website..
the reports say it will use an F150 drivetrain between these 2 motors I would take the 3.5
3.5L Ti-VCT 4-Valve V6 EcoBoost™
Horsepower (SAE net@rpm) 365 @ 5000
Torque (lb.-ft. @rpm) 420 @ 2500
5.0L Ti-VCT 4-Valve V8 FFV
Horsepower (SAE net@rpm) 360 @ 5500
Torque (lb.-ft. @rpm) 380 @ 4250
I would actually prefer a torquey little diesel or that little Eco Boost that could possibly take that up to the high 20s for MPG and still have all the power to fit your wheeling needs