5.4-4v Navigator engine swap?!?

billfisher

Active Member

Jul 17, 2005

1,296

4

38

huntsville, AL

Oct 1, 2008

#41

• Oct 1, 2008

• #41

well you can use it, but runner cross section and plenum volume is WAY too small for good hp number with 50 extra cubes.

 

billfisher

Active Member

Jul 17, 2005

1,296

4

38

huntsville, AL

Oct 1, 2008

#42

• Oct 1, 2008

• #42

besides the 97 cobra wont fit tumble heads. and any adapter will just plain suck. if you are talking 5.4 4v navi.

 

B

birdman941

New Member

Sep 14, 2008

115

0

0

Gone

Oct 1, 2008

#43

• Oct 1, 2008

• #43

........................

 

J

jamesvt96/03

New Member

Oct 11, 2008

3

0

0

Oct 11, 2008

#44

• Oct 11, 2008

• #44

yeah but if you bore and stroke yours not only will you have over 5 liter mod motor, you can buy forged internals and spray or boost the hell out of it. or both. mod motors get most of their power by simple bolt ons. with out forged internals bolt ons are very limited.

 

B

birdman941

New Member

Sep 14, 2008

115

0

0

Gone

Oct 12, 2008

#45

• Oct 12, 2008

• #45

........................

 

B

birdman941

New Member

Sep 14, 2008

115

0

0

Gone

Mar 28, 2009

#46

• Mar 28, 2009

• #46

.....................

 

1stanger1

Member

Jul 3, 2005

172

1

17

in my house

Mar 28, 2009

#47

• Mar 28, 2009

• #47

well being that the 5.4 is wider wouldnt you have to delete the brake system and go manual?

what if you were to take a 5.4 sohc bottom end and adapt a cobra top end to that???? that would be sweet as hell i know you wouldnt be able to use the intake because of the block being wider i assume

but when you assume you make an ASS out of U and ME

 

B

birdman941

New Member

Sep 14, 2008

115

0

0

Gone

Mar 28, 2009

#48

• Mar 28, 2009

• #48

.....................

 

1stanger1

Member

Jul 3, 2005

172

1

17

in my house

Mar 28, 2009

#49

• Mar 28, 2009

• #49

ahhhhhhhhhhhhhh see i AM an idiot!!!

 

B

birdman941

New Member

Sep 14, 2008

115

0

0

Gone

Mar 31, 2009

#50

• Mar 31, 2009

• #50

...............

 

B

birdman941

New Member

Sep 14, 2008

115

0

0

Gone

Apr 3, 2009

#51

• Apr 3, 2009

• #51

.....................

 

B

bditty50

Member

Jun 20, 2005

170

0

16

Tampa, Florida

Jan 6, 2010

#52

• Jan 6, 2010

• #52

whats the weight of the 5.4 dohc motor versus the 4.6 dohc 03 cobra motor?

 

B

birdman941

New Member

Sep 14, 2008

115

0

0

Gone

Feb 7, 2010

#53

• Feb 7, 2010

• #53

It is about the same.

 

jeremy canter

Member

Dec 2, 2008

402

0

17

Orange County , NY

Feb 7, 2010

#54

• Feb 7, 2010

• #54

I've found a local j-yard with a low mileage 5.4 dohc for around $500.00 but don't know if I want to sell my 98 4.6 cobra motor in parts and build a 5.4 for the car or just build the stock one back up with a 5.0 stroker > I do know I'm getting tired of it just sitting in my drive way while i drive a f-ing mini van to work every day

 

95Vert383AOD

15 Year Member

Jun 10, 2008

1,133

34

69

New Bedford, MA

Feb 7, 2010

#55

• Feb 7, 2010

• #55

I'm putting a 5.4 in a Lincoln Mark 8. I'm using a Sullivan intake kit. So ill have to figure out what to do with the old Teksid block and b heads.....

I hear the 32v C heads arent the best....the Aviator heads are actually better. But this car will eventually get a Kenne bell so the loss of a Few CFM's doesn't really matter.

Motor cost me $700 Intake Stuff $1500 Machine shop $1000
Heres some pics

The Car


Motor + Some paint




Some Sullivan stuff

 

B

bditty50

Member

Jun 20, 2005

170

0

16

Tampa, Florida

Feb 7, 2010

#56

• Feb 7, 2010

• #56

nice motor looking good.

 

jeremy canter

Member

Dec 2, 2008

402

0

17

Orange County , NY

Feb 8, 2010

#57

• Feb 8, 2010

• #57

who make's the intake kit?
Sullivan intake kit?

 

Gearbanger 101

Straight Outta Locash

20+ Year Stangneter

Aug 10, 2002

9,457

1,377

234

Ontario, Canada

Feb 8, 2010

#58

• Feb 8, 2010

• #58

jeremy canter said:

who make's the intake kit?
Sullivan intake kit?

Click to expand...

Ford DOHC single plane intake manifolds

 

jeremy canter

Member

Dec 2, 2008

402

0

17

Orange County , NY

Feb 9, 2010

#59

• Feb 9, 2010

• #59

Yea, holy **** there on drug's > there's no way i'm going to pay that much for a intake set-up > I'll run the stock intake before that happens .

 

J

JonRoberts

New Member

May 9, 2017

4

0

1

May 11, 2017

#60

• May 11, 2017

• #60

myrez99 said:

Why would the SOHC have more power than a DOHC, mod for mod?

Click to expand...

I know right. A 3v has more hp and tq over then the 2v and the 3v is cam phasers. Works with oil pressure to advance time and retard time hence more power. And why would a 4v lack any thing. When Ford made the 4v engines they were considered specialty engines like : the teksid block .93-01 cobra, 93-98 mark 8's 99-04 Lincoln Aviator for the 4.6 4v blocks. 99-2005 for the 5.4 4v blocks for the 5.4 swaps.