- Joined
- Apr 18, 2019
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- Location
- Phoenix AZ
- Vehicle(s)
- GMC
- Your Bronco Model
- Base
There was definitely a noticeable difference and I have “owned” (2) of each.You are full of it with the 8.1L vs. 6.8L. I have operated both, and they have very similar power delivery and fuel mileage. Power depends a bit on year, but the best years for pickup applications, the 6.8L was rated at 362 HP @ 4,750 RPM & 457 lb-ft @ 3,250 RPM while the 8.1L was rated 340 HP @ 4,200 RPM & 455 lb-ft @ 3,200 RPM. The both have broad torque curves and peak at almost the exact same point, the V10 just carries the power a bit further than the 8.1L. The 2012+ medium duty 6.8L were rated at 460 lb-ft @ 3,000RPM for what its worth.
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I have owned (2) 99 V10 superdutys, one a F250 supercab 4c4 and one a F450 chassis cab.
For the 8.1 big block, one was a 2003 supercab 2wd and the one that’s currently in my garage waiting for my daughter to turn 16 is a 2001 crew cab 4x4.
The other reason your reading of spec sheets may be decieving you is nowhere In your spec sheets does it mention the fact that the 8.1 comes with the 5 speed Allison which has the lower 1st gear for drastically superior acceleration off the line.
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