Why?
Posting Guru
Joined: Sep 2003
Posts: 1,174
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From: Near Wamego KS
4.6 was first installed in the then new Town Car in 1991, then the then new 1992 GM & Crown Vic, then into the "new" Mustang in 1995 (a year late). 5.4 wasn't available when the current style Mustang was introduced (I know it was changed a little in 1999). 5.4 production is needed for the light truck/van market. Mustang sales where fine with the 4.6 and Ford didn't want to spend the money for engineering 2 V8s in the same car. The 5.4 available 1997 to 2001 would have still been spanked by the LT1 and LS1 powered TAs and Camaros.
Posting Guru
Joined: Jan 2004
Posts: 1,437
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From: Hamilton, ohio
i dont know why ford has not used a 5.4 in the stang. we know it would fit cause they put them in the cobra R and they also built a test car with the V10 in it. it would make sense to put in the 5.4.
Posting Guru
Joined: Dec 2003
Posts: 2,155
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From: Centerville, Iowa
Maybe someday we'll see 300+ cubic inches in the mustang again...someday ^_^. We can hope...
...I'd get one, if I had the money, and if I were 25 (lower insurance). Money won't be a problem in a few years...just the age part.
...I'd get one, if I had the money, and if I were 25 (lower insurance). Money won't be a problem in a few years...just the age part.
Thread Starter
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Laughing Gas
Joined: Jul 2003
Posts: 893
Likes: 8
From: Lincoln, Nebraska
the 4.6 in a mustang and a 5.7 in a camaro where pretty close to the same HP and torque ratings where really close and the power they got out of the 4.6 between the truck engine and mustang engine was quite a bit. If they would do the same with the 5.4 no camaro would be able to beat it. Yes they did but a 5.4 in the cobra R so why cant they just take that engine minus the blower and change a few other parts?
Lead Driver
Joined: Feb 2003
Posts: 8,140
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From: Oak Harbor, OH
Do the research, they had to completely redesign the engine bay to cram the 5.4 in the GTR, the relocated the shock towers, and reworked the inner fender wells. The problem is that the car was not designed to have a 5.4, it held it's own against the camaro, and firebird, with a smaller engine....
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Posting Guru
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Senior User
Joined: Nov 2003
Posts: 251
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From: Ocala, FL
The real reason why is they don't have to. As long as the Mustang keeps selling well, and it is, no significant HP improvements will be coming to the mass produced models. When someone comes out with a higher HP car that outsells the Mustang, Ford might respond.
When it comes to Ford, it's ALL about the dollar!
When it comes to Ford, it's ALL about the dollar!
Government Teat-sucker
Joined: Oct 2003
Posts: 9,748
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From: Virginia Beach
Originally Posted by DeckedoutF150
i dunno, there are rumors of a boss 302 coming out and they are making a new 6.2L big block they are going to call the hurricane.
Postmaster
Joined: Jan 2003
Posts: 3,775
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From: Conway Arkansas
Originally Posted by momudder720
6.2L is a big block now?! A 400 is 6.6 and that's not a big block...
Anyways.... I've heard rumors, and read about a new 5.0 but its based off of a stroked 4.6... not the old style 5.0 that everyone knows
Posting Guru
Joined: Jan 2003
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From: House Springs, MO
Originally Posted by Andysutt
My 390 is a big block and its not even a 6.6 liter
Anyways.... I've heard rumors, and read about a new 5.0 but its based off of a stroked 4.6... not the old style 5.0 that everyone knows
Anyways.... I've heard rumors, and read about a new 5.0 but its based off of a stroked 4.6... not the old style 5.0 that everyone knows
