4 v head swap

finaly03vert · October 2nd, 2007, 06:44 PM

so i have searched with no luck i would like to either put 4v heads on my 03 gt or swap in a 5.4 dohc i dont have the money for either right now but i want to start buying what i can now... any one know the down falls of either. any one done it i have a good understanding of mechanical know how but dont know the specks

04GTAMPA · October 2nd, 2007, 06:47 PM

I found a set of cobra heads on ebay yesterday and had the same question. I guess all in all you're looking at some 3K or so to do the swap.... You need the fuel rails, injectors, intake with it's plenum and all the shit, headers... This is just a scratch on the surface....

Drgnracin72 · October 2nd, 2007, 07:00 PM

youll have to have your block drilled and tapped for a few extra timing things that are different on the cobra, youll need timing cover and a bunch of other shit. easier just to buy a complete cobra motor and swap in.

WAR-PARTY · October 2nd, 2007, 10:06 PM

Originally Posted by drgnracin72

youll have to have your block drilled and tapped for a few extra timing things that are different on the cobra, youll need timing cover and a bunch of other shit. easier just to buy a complete cobra motor and swap in.

1+ why do you want so many more parts, KISS keep is simple stupid. Get a set of good SOHC heads and a good cam, some times more is less, and less is more!

neckbonekat · October 2nd, 2007, 10:39 PM

Good luck finding a 5.4L DOHC engine. 5.4L SOHC engines are easy to find, but I believe the DOHC only came in the Cobra R or the Ford GT.

yojoe600 · October 2nd, 2007, 11:49 PM

and the Lincoln navigator lol

Drick · October 3rd, 2007, 01:36 AM

Didnt HMUSN do the same thing your looking for on his GT he will deffinitly no your situation your looking at

neckbonekat · October 3rd, 2007, 05:01 AM

Originally Posted by yojoe600

and the Lincoln navigator lol

I thought the navigator is SOHC not DOHC.

yojoe600 · October 3rd, 2007, 09:21 AM

it maybe but i have seen alot of engines from it saying dohc

finaly03vert · October 3rd, 2007, 01:19 PM

the lincoln nav came with a dohc in the the late years i think i dont know they have the motor on ebay for 3500 dont know if it is a good block to build tho

October 2nd, 2007, 06:44 PM	#1
finaly03vert Regular 03 gt vert lights cant time it Join Date: Sep 2007 Location: Lincoln NE Posts: 296 iTrader: 0 reviews	4 v head swap so i have searched with no luck i would like to either put 4v heads on my 03 gt or swap in a 5.4 dohc i dont have the money for either right now but i want to start buying what i can now... any one know the down falls of either. any one done it i have a good understanding of mechanical know how but dont know the specks

October 2nd, 2007, 06:47 PM	#2
04GTAMPA Hardcore Enthusiast 2001 Mustang SVT Cobra Join Date: Apr 2007 Location: Riverview, FL Posts: 2,751 iTrader: 1 reviews	I found a set of cobra heads on ebay yesterday and had the same question. I guess all in all you're looking at some 3K or so to do the swap.... You need the fuel rails, injectors, intake with it's plenum and all the shit, headers... This is just a scratch on the surface.... __________________ Slow, really slow Cobra. Wanna see? MM Cobra Club Member #81 "TAMPA BAY AREA CREW"

October 2nd, 2007, 07:00 PM	#3
Drgnracin72 I Post Entirely Way Too Much Join Date: Jan 2006 Location: somewhere in oklahoma Posts: 10,638 iTrader: 2 reviews	youll have to have your block drilled and tapped for a few extra timing things that are different on the cobra, youll need timing cover and a bunch of other shit. easier just to buy a complete cobra motor and swap in. __________________ RIP ΜΟΛΩΝ ΛΑΒΕ Political Correctness is a doctrine, fostered by a delusional, illogical, liberal minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end. One Big Ass Mistake America SHEEPDOGS

October 2nd, 2007, 10:39 PM	#5
neckbonekat I Post Entirely Way Too Much 2005 Cadillac STS V8 ???????????????? Join Date: Dec 2006 Location: Upstate NY Posts: 6,344 iTrader: 3 reviews	Good luck finding a 5.4L DOHC engine. 5.4L SOHC engines are easy to find, but I believe the DOHC only came in the Cobra R or the Ford GT. __________________ ITEMS FOR SALE! 4.10 GEARS + BEARING KIT

October 3rd, 2007, 01:36 AM	#7
Drick Big timin' in a small town 2004 FX4 F150, 86 GT Join Date: Apr 2007 Location: Gods country. Nordern Michigan eh Posts: 14,365 iTrader: 1 reviews	Didnt HMUSN do the same thing your looking for on his GT he will deffinitly no your situation your looking at __________________ FX4 Crew Crew member #1 Don't take anything I say to heart, I don't try to come off as an asshole. It just happens

October 3rd, 2007, 01:19 PM	#10
finaly03vert Regular 03 gt vert lights cant time it Join Date: Sep 2007 Location: Lincoln NE Posts: 296 iTrader: 0 reviews	the lincoln nav came with a dohc in the the late years i think i dont know they have the motor on ebay for 3500 dont know if it is a good block to build tho __________________ NX EFI plate 250 jetcustom tune Eibach Pro-Kit Magnaflow cat back high flow cats, 3:55s, ported and polished heads, comp cams, forged pistons/ rods Curently building up 03 mach block w stage 3 port job. look for twins and more n2o

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