modular 5.4L

99cobra! · October 25th, 2008, 02:55 PM

Hey guys, as you all know or may not know I am in Iraq, saving money like crazy right now. I have come to a few conclusions on what I want to do to my car when I return. I was reading about the 5.4L black and saw that the heads on my 4V cobra are compatible. Now with that said do any of you know if the other parts including the intake manifold are compatible as well. Because I am going to replace the rotating assembly, the heads and everything in them anyways and I found a 5.4L for 500 bucks. Thanks to all who respond.

yojoe600 · October 25th, 2008, 02:58 PM

there are things that can be swaped over but sometimes there are minor problems like not exact fitting but they can be worked out... i can remember if the intake works but if it doesnt im sure there are some adapter plates that would work

Goblin · October 25th, 2008, 03:10 PM

Are you keeping it N/A? Or is forced induction in the future? These are the major issues that need to be addressed first before you decide which heads and intake combo to use.

99cobra! · October 25th, 2008, 03:20 PM

N/A all the way. I was thinking forced induction but love the N/A option. But this option isn't 100% yet, just looking for the best option and the safest option for my car but try to get the most amount of power.

Mach Boy · October 25th, 2008, 08:43 PM

Are you sure about the intake being compatible? I thought it was the only thing other than a midpipe that wasn't. If you're going N/A look into a Sullivan intake.

futureMACH1racer · October 25th, 2008, 09:19 PM

If you're going to do then get a custom sheetmetal intake, Cobra R or FR500 heads. You can work navigator heads.

acidtonic · October 25th, 2008, 11:11 PM

Originally Posted by futureMACH1racer

If you're going to do then get a custom sheetmetal intake, Cobra R or FR500 heads. You can work navigator heads.

I would absolutely love to find R heads......

Damn ford for creating the most bad ass 4v heads and then pushing the FR500 crap down our throats as the high quality heads....

Yes the FR500 heads rock but damn the modular 4 valves would really benefit from some easily obtainable R heads.

futureMACH1racer · October 26th, 2008, 01:18 AM

I found some, $7500 for the set.

acidtonic · October 26th, 2008, 02:12 AM

Originally Posted by futureMACH1racer

I found some, $7500 for the set.

Eww.

Look for Ford BA Falcon XR8 heads.....

Slightly updated R heads with straighter air flow. I believe these are the best heads available before being touched.

Then checkout the intake from this.... I believe thats also bitchin

Ford FPV Boss 290 GT-P V8 Engine & Suspension Review - Muscle Mustangs & Fast Fords

futureMACH1racer · October 26th, 2008, 03:03 AM

thanks I'll check them out

Mach Boy · October 26th, 2008, 03:14 PM

That intake doesn't fit. It was made in Australia. Look at where the airbox is and then think what is there on our cars. A guy on mach1registry that goes by birdman sells an American version of the 290.

acidtonic · October 26th, 2008, 03:41 PM

Originally Posted by Mach Boy

That intake doesn't fit. It was made in Australia. Look at where the airbox is and then think what is there on our cars. A guy on mach1registry that goes by birdman sells an American version of the 290.

Yeah I guess I wasnt too specific but people are getting these to work on our cars. I didnt want to get into specifics since I dont have all the info.

They are pretty bad ass from what I've heard though, and might be cheaper since they were a bit more mass produced than the Cobra R parts.

Goblin · October 26th, 2008, 04:49 PM

Staying N/A? Just run the navi heads. Keep it simple and cheap. The navi heads will do whatever you need them too, and they dont cost anything. As far as intake options, its small for the 5.4s. The Sullivan intake is probably the best choice, with a wilson 90 degree elblow and accufab throttle body.

This is assuming you want more than 350rwhp.

futureMACH1racer · October 26th, 2008, 05:11 PM

Try a Logan Intake, as they were referred to me. I will refer them to you guys.

Goblin · October 26th, 2008, 08:22 PM

^^^ Although they are nice intakes, they are also pricey. If your looking to save money, you can buy a set of adapter plates so you can run a 99-01 Cobra intake with the navi heads. That would probably be the cheapest route.

holcombford · October 29th, 2008, 11:05 PM

Another option for 4v cylinder heads are the ford GT heads. They are pricey but they make amazing horsepower

Doc8224 · October 29th, 2008, 11:32 PM

ported navi heads are awesome and flow very well on the top end. so I've heard

October 25th, 2008, 02:55 PM	#1
99cobra! Regular 1999 Mustang Cobra Not Yet Join Date: Oct 2008 Location: North Carolina Posts: 256 iTrader: 0 reviews	modular 5.4L Hey guys, as you all know or may not know I am in Iraq, saving money like crazy right now. I have come to a few conclusions on what I want to do to my car when I return. I was reading about the 5.4L black and saw that the heads on my 4V cobra are compatible. Now with that said do any of you know if the other parts including the intake manifold are compatible as well. Because I am going to replace the rotating assembly, the heads and everything in them anyways and I found a 5.4L for 500 bucks. Thanks to all who respond. __________________ MM COBRA CLUB #19 "Real cars aren't powered by their front wheels, they lift them"

October 25th, 2008, 03:10 PM	#3
Goblin Hardcore Enthusiast 88mm Join Date: Apr 2007 Location: Tucson, AZ Posts: 2,111 iTrader: 0 reviews	Are you keeping it N/A? Or is forced induction in the future? These are the major issues that need to be addressed first before you decide which heads and intake combo to use. __________________

October 25th, 2008, 03:20 PM	#4
99cobra! Regular 1999 Mustang Cobra Not Yet Join Date: Oct 2008 Location: North Carolina Posts: 256 iTrader: 0 reviews	5.4 N/A all the way. I was thinking forced induction but love the N/A option. But this option isn't 100% yet, just looking for the best option and the safest option for my car but try to get the most amount of power. __________________ MM COBRA CLUB #19 "Real cars aren't powered by their front wheels, they lift them"

October 25th, 2008, 08:43 PM	#5
Mach Boy MM's Orangest 2004 Mach 1 Mustang Join Date: Sep 2007 Location: Indy Posts: 2,846 Blog Entries: 1 iTrader: 1 reviews	Are you sure about the intake being compatible? I thought it was the only thing other than a midpipe that wasn't. If you're going N/A look into a Sullivan intake. __________________ Looking for 03/04 4V ABS Wiring Harness Connector/Incomplete Wiring Harness (with ABS connector)

October 25th, 2008, 09:19 PM	#6
futureMACH1racer I.D.G.A.F. 2009 John Deere 9670 Join Date: Sep 2007 Location: United States of America Posts: 11,347 iTrader: 0 reviews	If you're going to do then get a custom sheetmetal intake, Cobra R or FR500 heads. You can work navigator heads. __________________ RIP Travis Bilings 5/6/1982-7/5/2011 Be polite. Be professional. But have a plan to kill everyone you meet.

October 26th, 2008, 01:18 AM	#8
futureMACH1racer I.D.G.A.F. 2009 John Deere 9670 Join Date: Sep 2007 Location: United States of America Posts: 11,347 iTrader: 0 reviews	I found some, $7500 for the set. __________________ RIP Travis Bilings 5/6/1982-7/5/2011 Be polite. Be professional. But have a plan to kill everyone you meet.

October 26th, 2008, 03:03 AM	#10
futureMACH1racer I.D.G.A.F. 2009 John Deere 9670 Join Date: Sep 2007 Location: United States of America Posts: 11,347 iTrader: 0 reviews	thanks I'll check them out __________________ RIP Travis Bilings 5/6/1982-7/5/2011 Be polite. Be professional. But have a plan to kill everyone you meet.

October 26th, 2008, 03:14 PM	#11
Mach Boy MM's Orangest 2004 Mach 1 Mustang Join Date: Sep 2007 Location: Indy Posts: 2,846 Blog Entries: 1 iTrader: 1 reviews	That intake doesn't fit. It was made in Australia. Look at where the airbox is and then think what is there on our cars. A guy on mach1registry that goes by birdman sells an American version of the 290. __________________ Looking for 03/04 4V ABS Wiring Harness Connector/Incomplete Wiring Harness (with ABS connector)

October 26th, 2008, 04:49 PM	#13
Goblin Hardcore Enthusiast 88mm Join Date: Apr 2007 Location: Tucson, AZ Posts: 2,111 iTrader: 0 reviews	Staying N/A? Just run the navi heads. Keep it simple and cheap. The navi heads will do whatever you need them too, and they dont cost anything. As far as intake options, its small for the 5.4s. The Sullivan intake is probably the best choice, with a wilson 90 degree elblow and accufab throttle body. This is assuming you want more than 350rwhp. __________________

October 26th, 2008, 05:11 PM	#14
futureMACH1racer I.D.G.A.F. 2009 John Deere 9670 Join Date: Sep 2007 Location: United States of America Posts: 11,347 iTrader: 0 reviews	Try a Logan Intake, as they were referred to me. I will refer them to you guys. __________________ RIP Travis Bilings 5/6/1982-7/5/2011 Be polite. Be professional. But have a plan to kill everyone you meet.

October 26th, 2008, 08:22 PM	#15
Goblin Hardcore Enthusiast 88mm Join Date: Apr 2007 Location: Tucson, AZ Posts: 2,111 iTrader: 0 reviews	^^^ Although they are nice intakes, they are also pricey. If your looking to save money, you can buy a set of adapter plates so you can run a 99-01 Cobra intake with the navi heads. That would probably be the cheapest route. __________________

October 29th, 2008, 11:05 PM	#16
holcombford Newbie 1989 mustang n/a Join Date: Oct 2008 Location: wilmington Posts: 3 iTrader: 0 reviews	Another option for 4v cylinder heads are the ford GT heads. They are pricey but they make amazing horsepower

October 29th, 2008, 11:32 PM	#17
Doc8224 N/A 4v Guru 2003 Mach 1 Join Date: Oct 2007 Location: Afghanistan Posts: 3,463 Blog Entries: 2 iTrader: 1 reviews	ported navi heads are awesome and flow very well on the top end. so I've heard __________________ Military Crew U.S. Army Aviation Apache's Lead The Way

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