[quote]Growing_Boy wrote:
Mhatch wrote:
Every time you mention trucks you bring up diesels and almost disregard gas engines. Do you believe most americans need a heavy duty truck? I doubt most people with any type of heavy duty truck will ever tow half of what the trucks are capable of towing. With that said GM’s gas engines V8s are easily on par with Ford’s gas V8s.
I’ve owned both. A V10 and a 7.3L diesel. I don’t believe that most Americans need a heavy duty truck. Most American’s need to loose some weight. GM does have powerful V8 powerplants. The 572 badboy comes to mind but the rest of the package blows donkey balls. Any V8 powered Silverado will bow before Ford’s 5.4 3 valver. The entire package is far superior to anything GM has ever put out. Break out the V10 and its not contest. The Ford will outpull, out perform, and out live any abortion and crime against humanity that GM puts out.
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2-valve SOHC
Ford 5.4 1997-2004: 260 HP 350 lb-ft in Ford F-series and Expedition
Ford 5.4 1999-present: 255 HP 350 lb-ft in Ford E-series
3-valve SOHC
Ford 5.4 2004-2008: 320 HP 390 lb-ft in F-series
Ford 5.4 1999-present: 300 HP 365 lb-ft in Expedition and Navigator
Ford 5.4 2009-present: 320 HP 390 lb-ft in F-series
2-valve
Ford 6.8 2000-present: 305 HP 420 lb-ft in E-series
Ford 6.8 1999-2004: 310 HP 425 lb-ft in F-series SD
Ford 6.8 2000-2005: 310 HP 425 lb-ft in Excursion
3-valve
Ford 6.8 2005-present: 362 HP 457 lb-ft in F-series SD
Now we all know Ford modular engines are physically massive for their displacement, so I am only going to put information on the 6.0 and 6.2 liter. The wiki site for GM’s LS style truck engines isn’t as informative on year and model ranges for each engine code.
6.0 L LQ4: 300-325 HP 360-370 lb-ft
6.0 L LQ9: 347 HP 380 lb-ft designed for Cadillac later used in most trucks
6.0 L L76: 367 HP 375 lb-ft replacement for LQ9 production started in 2006
6.2 L L92: 402 HP 417 lb-ft Denali, Sierra, and Sierra Denali
6.2 L L92: 403 HP 415 lb-ft Hummer, Escalade
6.2 L L92: 395 HP 417 lb-ft Tahoe LTZ
I don’t know if it’s worth posting about GM’s 7.4 or 8.1L big block truck engines to counter the 6.8L Ford. I’ll just post the ranges of the 8.1L: 225-340 HP 350-455 lb-ft. So the 3-valve V10 which is physically probably as big or bigger than the 8.1L barely beats it. All of this info is relevant but the actual dyno graphs are more important. Area under the curve is what is important.
Oh my buddy told me to ask you why Ford’s 6.8 2-valve used to dyno 170 HP at the tire…