Its only $800 to go from 2.7 to 5.0 for F-150 and from 5.0 to 3.5 is only $600I can't think of a time when Ford offered an engine upgrade for $300. Maybe on the 1965 Mustang. On our Escape, going from the 1.6 to the 2.0 (both turbo I4) was $1000. So, going from 2.0 single-turbo I4 to 2.7 twin-turbo V6 for $1895 is what I expected. Also, that's the upgrade price on any Bronco trim. Particularly note that's the price on Outer Banks, which already includes the automatic. To summarize:
$1895 for the V6 upgrade, regardless of trim
$1595 for the 10-speed auto upgrade (required if getting the V6 and not already included in the trim)
If you need both (as in Badlands), you're looking at about $3500 MSRP.