10 posts - 2 authors - Last post: Apr 30, 2005Are you trying to tell me that the 5.4L Navi heads with 170CC of intake port volume are bigger than the 177cc of port volume of the 03/04 Cobra .

9 posts - 8 authors - Last post: Nov 13, 2010Will the heads, intake and supercharger from a 5.4L F150 Lightning (2003) fit . be useful if you found a 4.6 manifold, like from an 03-04 Cobra. .

4 posts - 4 authors - Last post: Oct 23, 2007between an 01 cobra head and the 03 cobra head? . The design downfall of C heads, and their larger (5.4L Navigator) cousins, is the .

Ford Modular, 2, 3 & 4-Valve, Socket Head Bolt Kits · AODE and 4R70W Transmssions · Complete 4.6L & 5.4L Engines · 03-04 Cobra Assembly Manual .

4 posts - 3 authors - Last post: May 23I haven't heard of many people putting on the 5.4 heads, what is the .

18 posts - 7 authors - Last post: Jan 16, 2008I'm tempted to throw a set of 03/04 cobra heads on my 5.4, not counting the .

17 posts - 6 authors - Last post: Mar 9, 20102003-04 4V Cobra Heads Complete $800 (used) - SOLD 2001-03 4V .

7 posts - 4 authors - Last post: Jan 4, 2010The design downfall of C heads, and their larger (5.4L Navigator) . . '03 DOHC head: ('03+ Aviator, Marauder, Cobra, Mach 1, Australian Boss .

10 posts - 5 authors - Last post: Aug 27, 20065.4 swap 4.6L (1996-2004 Modular) Mustang. . The Cobra heads were modified .

4.6L & 5.4L heads will physically interchange, but the ports on the 5.4L heads are much bigger than the 4.6L heads. . The Cobra heads were modified for 2003. .

4 posts - 3 authors - Last post: Oct 14, 2004What all is needed to run '03/'04 Cobra heads on a 5.4 Navigator motor? I realize and aftermarket intake would be needed but was wondering if .

20 posts - 7 authors - Last post: May 26, 2009I just wish they had some C port cobra heads, more 5.4 blocks and .

4V DOHC 4.6 and 5.4 Engine Components . Ford 4.6/5.4 DOHC 1993-2004 (2/ set). . Stage 1 MMR 03/04 Cobra heads (no exchange required Brand new!!) .

4.6 and 5.4 engines with 3valve heads use variable cam timing (VCT) . another improved version introduced on the 2003/04 S/C Cobra. still a single intake .

25 posts - 4 authors - Last post: Nov 29, 2003I'm confused. i thought the 03 cobra DOHC heads are generally identical to that of the dohc heads on the 5.4L. I guess they are not? What is .

10 posts - 9 authors - Last post: Apr 18, 2004I pushed a little more out of the 5.4. . The complete valvetrain in the left head stopped turning. . . Last edited by mygt; 04-19-2004 at 03:32. .

4.6 L 4-valve DOHC V8 installed in a 1999 Ford Mustang SVT Cobra .

Complete Ford Modular engine from 2-Valve to 03-04 Cobra Super-Charged .

25 posts - 12 authors - Last post: Jul 133V Heads Stock valves: 280 int / 185 exh. Oversize valves: 295 int / 200 exh. 4V Heads 03-05 Cobra/Mach/Aviator Stock valves: 310 int / 255 .

17 posts - 10 authors - Last post: Aug 21, 2007The Mach I engine has 03 Cobra heads, a new intake manifold, exhaust cams .

22 posts - 6 authors - Last post: May 16, 2010are the 4.6l 4v and 5.4l 4v heads enterchangable? . heads from the same year cobra or even an 03/04 cobra heads and have them ported and .

2 posts - 1 author - Last post: Jun 4, 200403 Cobra/Mach heads on a 5.4 Shelby GT500 / 5.4L Tech.

FORD RACING HIGH-FLOW 4.6L DOHC 4V MUSTANG COBRA CYLINDER HEADS 03-04 Mach 1 Ford Mustang, MagnaFlow Stainless Steel Exhaust Systems .

1 post - 1 author - Last post: Jan 30, 2009Or How about a 5.4 with 4 valve cobra heads to a 87 Fox. sorry i thought it was a "? . DOHC tumble port C heads OR '03-'04 Cobra heads .

13 posts - 5 authors - Last post: Dec 24, 2010Choose carefully. I'd go with 03 cobra heads. don't think about it being a 5 .

Nov 29, 2010 – . 5.4 Modular Head Shop Ported Navigator Heads Stock 98 Cobra Cams MMR . JMS Turbo Mustang 910+rwhp 2003 Cobra 5.4L Modularby .

10+ items – The '03 SVT Cobra's supercharged 4.6L DOHC V-8 produces .

4 posts - 3 authors - Last post: Sep 29, 2005Not to mention that having a 96-98 or 03-04 SC setup (Stock, KB or . Cobra heads won't fit becuse they are for the 4.6L block, not the 5.4 block. .

Anyone have any ideas or opinions on how well the 03 cobra heads perform in . My FR heads are going on a 5.4 block with a much more rubust water pump .

Likely the ultimate 4.6L four-valve appeared in the '03 to '04 Mustang Cobra with . The 5.4L from the '99 to '04 Navigator has an iron block and four-valve heads .

20 posts - 6 authors - Last post: Jan 14, 2009Stock Intake Choices: ë99/í01 Cobra, ë03/í04 Mach 1 & Aviator, í03 . The design downfall of C heads, and their larger (5.4L Navigator) cousins .

The Shelby Mustang SVT Cobra was a pony car built by Ford Motor . 5 2003– 2004; 6 References . Part Numbers: F3ZZ-6049-B (head), F3ZZ-6507-A (intake valve), . . In 2000, the Cobra R returned for a production run of 300 units ( effectively taking the place of the standard Cobra for that model year) with a 5.4L DOHC .

. new 03/O4 Cobra Block, and fully assembled with new Ford Motorsport PI .

29 posts - 7 authors - Last post: Sep 7, 2010I Have 96 Cobra A Heads Complete With Cams For 199 . to do a 03 cobra setup they are not worth the money. but mark viii heads and cobra heads are the . . What size injectors are needed for a 5.4 with a stock eaton setup? .

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2 posts - 2 authors - Last post: Oct 24, 200403 Cobra blower on 5.4 1996 - 2001 Mustang Cobra. . I told him that I .

23 posts - 14 authors - Last post: 3 days agohead swap Engine - 4.6L & 5.4L. . The aussie intake was made for 03+ C heads found in the Cobra/Mach/Marauder/Aviator and has the ports .

13 posts - 5 authors - Last post: Mar 13, 2007On the same note will these heads go on the 5.4 block? If I read correctly the gt40 uses a 5.4 block and pretty close to stock 03/04 cobra heads. .

Aug 9, 2011 – Looking to start gathering parts for a project car. Got a few questions that will no doubt turn to alot of questions as this goes on. I want to swap a.

In an effort to try and help the Ford modular engine community we have .

42 posts - 13 authors - Last post: Nov 30, 2005[Archive] 03-04 Cobra Head Tick!!!! 2003 - 2004 SVT Cobra "Terminator"

8 posts - 4 authors - Last post: Nov 11, 2003does anyone know if the 2000-2003 mustang SVT cobra heads will fit on the 99 5.4l block? Does anyone have any flow rate info on cobra r .

This Forum is to list 4.6/5.4 engine-related parts only, including heads, cams, . 2003-2004 NEW cobra manley rods and mahle pistons for sale · 2001 gt block .

15 posts - 6 authors - Last post: Feb 16, 20095.4 Engine: The 5.4 engine had Non Pi Heads from 1997 to 1998. . . I have been thinking about going from my 5.4 down to a 03-04 cobra 4.6, .

8 posts - 5 authors - Last post: Jul 26cobra heads Tech. . The design downfall of C heads, and their larger (5.4L . . '03 DOHC head: ('03+ Aviator, Marauder, Cobra, Mach 1, .

There's no reason to get 5.4 heads unless you get the Cobra R or Ford GT heads and are building an all out high HP car. The 03/04 4.6 4V heads are great for .

20 posts - 13 authors - Last post: Jan 21, 2010Does anyone know if a a 5.4 modular will bolt in in place of a 4.6 in an '04 Mustang GT? . 2003 Cobra (Redfire) #3938 of 5082 @ 05/27/2003 1 of 414 . . So the block's a little taller and the heads will be a little higher too. .

Home > Cylinder Heads > 4V-DOHC 4.6 5.4 DOHC 2003-2004 COBRA / MACH1 LH CYLINDER HEAD ASSEMBLY W/CAMS .

11 posts - 4 authors - Last post: Feb 8The 03+ are essentially the same as the 03/04 cobra and Mach 1's. Here's a .

10 posts - 8 authors - Last post: Mar 31, 200803 cobra or 4v 5.4L swap 4.6L (1996-2004 Modular) Mustang. . 03 cobra with heads, cams, full bolt ons ,stroker motor, and a 3.4 whipple .

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