Here is a bit more power and torque data.
F-250 and F350:
430 HP @ 5,500 rpm
475 lb-ft @ 4,000 rpm
Larger trucks, F53, F59, and E-Series:
350 HP @ 3,900 rpm
468 lb-ft @ 3,900 rpm
https://media.ford.com/content/fordm...ty-pickup.html
It seems the engine can rev higher than many expected, although for heavier commercial trucks and RVs, Ford limits power to 3,900 RPM.
It will be interesting to see if there is a real physical difference, or if it’s strictly a reporting thing on paper due to government regulations.
These ratings also explain different redlines on similar instruments. The ~ 6,000 RPM must be for pickups, and roughly 5,200 ~ 5,300 RPMs for heavier trucks and RVs.
One thing many will like is roughly +400 lb-ft of torque starting at 1,500 RPM.
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