replacement what to get.
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Sound advice 
The 2003 and 2004 6.0 actually had more power to them.
Much like the Ford 6.0, they took power away as production went on. I had a 2004 2500HD truck as a work vehicle back in 2011 and almost bought it because it had so much power for a gas engine. If it had 4wd, it'd be part of my fleet all now.
Definitely don't settle for 3.73 gears if you plan on towing, it'll do the job but it'll do it even better with 4.10 gears.
The 2003 and 2004 6.0 actually had more power to them.
Much like the Ford 6.0, they took power away as production went on. I had a 2004 2500HD truck as a work vehicle back in 2011 and almost bought it because it had so much power for a gas engine. If it had 4wd, it'd be part of my fleet all now.
Definitely don't settle for 3.73 gears if you plan on towing, it'll do the job but it'll do it even better with 4.10 gears.
By contrast, the 6.0L gas V8 was actually more powerful in 2005 and 2006 than in 2003 and 2004.
L18 8.1L Power Reduced Over Time
2003 L18 8.1L: 339 HP 455 TQ
2004 L18 8.1L: 320 HP 445 TQ
2005 L18 8.1L: 320 HP 440 TQ
2006 L18 8.1L: 320 HP 440 TQ
LQ4 6.0L Power Increased Over Time
2003 LQ4 6.0L Gas: 320 HP 360 TQ
2004 LQ4 6.0L Gas: 320 HP 360 TQ
2005 LQ4 6.0L Gas: 325 HP 365 TQ
2006 LQ4 6.0L Gas: 335 HP 375 TQ
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Joined: Sep 2003
Posts: 12,258
Likes: 771
From: Houston, Texas
Originally Posted by Y2KW57
It was only the 8.1L gas V8 that had power ratings reduced.
By contrast, the 6.0L gas V8 was actually more powerful in 2005 and 2006 than in 2003 and 2004.
L18 8.1L Power Reduced Over Time
2003 L18 8.1L: 339 HP 455 TQ
2004 L18 8.1L: 320 HP 445 TQ
2005 L18 8.1L: 320 HP 440 TQ
2006 L18 8.1L: 320 HP 440 TQ
LQ4 6.0L Power Increased Over Time
2003 LQ4 6.0L Gas: 320 HP 360 TQ
2004 LQ4 6.0L Gas: 320 HP 360 TQ
2005 LQ4 6.0L Gas: 325 HP 365 TQ
2006 LQ4 6.0L Gas: 335 HP 375 TQ
By contrast, the 6.0L gas V8 was actually more powerful in 2005 and 2006 than in 2003 and 2004.
L18 8.1L Power Reduced Over Time
2003 L18 8.1L: 339 HP 455 TQ
2004 L18 8.1L: 320 HP 445 TQ
2005 L18 8.1L: 320 HP 440 TQ
2006 L18 8.1L: 320 HP 440 TQ
LQ4 6.0L Power Increased Over Time
2003 LQ4 6.0L Gas: 320 HP 360 TQ
2004 LQ4 6.0L Gas: 320 HP 360 TQ
2005 LQ4 6.0L Gas: 325 HP 365 TQ
2006 LQ4 6.0L Gas: 335 HP 375 TQ
Thanks for pointing that out
Logistics Pro
Joined: Mar 2010
Posts: 3,535
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From: NC
If you want to see the problems https://www.youtube.com/@FordTechMakuloco is an awesome channel.
FTE Leadership Emeritus
Joined: Sep 2003
Posts: 12,258
Likes: 771
From: Houston, Texas
Originally Posted by Excurvelle
I don't recommend EcoBoost anything! There is a reason they are called Eco Booms!
If you want to see the problems https://www.youtube.com/@FordTechMakuloco is an awesome channel.
If you want to see the problems https://www.youtube.com/@FordTechMakuloco is an awesome channel.
Logistics Pro
Joined: Mar 2010
Posts: 3,535
Likes: 500
From: NC
My Daughter's boyfriend bought a 2017 EcoBoom Mustang and sure enough, it went boom. He had purchased a Ford ESP and the dealer replaced the engine with one right off the factory line.
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MrValentine
1987 - 1996 F150 & Larger F-Series Trucks
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Apr 3, 2004 03:54 PM
