5.4 4V question

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Jan 30, 2009 | 11:13 AM

Bobby82490

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From: N. Fort Myers,FL

5.4 4V question

Something I have always been curious about is why Ford used the 3V 5.4 exclusively instead of the 4V 5.4. With alot of people wanting more power out of their 04-08 F-150s, I was surprised the 4V wasn't ever offered as an option.

Is there a certain reason that the 04-08s or the new '09 don't have the 4V as an option? The 5.4 4V would be nice behind the 6 speed auto tranny.

Jan 30, 2009 | 11:29 AM

dkf

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Lots of people have wondered the same thing, myself included. The 4V is usually used in Lincolns, maybe Ford feels putting the 4V in a Ford branded vehicle would insult the engine.

Jan 30, 2009 | 03:35 PM

tseekins

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I asked the same question a while back and it was suggested that cost was the factor for not using it. But, whats the cost of developing a modular 5.0 or Ecoboost?

Tim

Jan 30, 2009 | 04:30 PM

Big Bad

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Cost is the reason. Ford could have spent the money they spent developing the 3V with VCT on evolving the 4V and had a ~360 HP/400 TQ 5.4 4V with iVCT in 2004, but decided to pinch a penny instead.

Jan 30, 2009 | 06:55 PM

GerRod

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A 4V is coming, but not with the 5.4L. It's coming with a new 5.0. L. Don't worry about displacement. It's going to make around 400 hp and 400 ftlbs of torque.

Ford’s 5.0L coyote V8 spied!

Jan 31, 2009 | 06:11 PM

Big Bad

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We know...

400-425 HP, 360-380 TQ in Mustang
360-370 Hp, 390-400 TQ in F150

And despite what Autoblog says, better mileage than the 4.6 3V AND the 5.4 3V.

But it would have been nice to have 360/400 in 2004, even if it used more fuel to do it.

Feb 1, 2009 | 03:48 PM

Power Kid

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Hmm a 5.0L 4v, its going to have to rev to get those numbers. I wonder what will the "tow" engine be in the lineup if the diesel is postponed. The ecooboost... not, the 5.0L, not the 6.2L not available... not sure.

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Feb 2, 2009 | 01:16 PM

Big Bad

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Quote:

Originally Posted by Power Kid

Hmm a 5.0L 4v, its going to have to rev to get those numbers.

No it won't, especially if TiVCT is implemented on the F150.

In the end, peak HP should occur close to 6000, peak TQ around 3000. There should be a large spread between them, similar to the newer Mercedes-Benz 4V V8s.