David_K

do the 5.4 swap. NE-one else done it????? then youl be the first and well have to ask you questions about it instead of taking peoples words

00GT00

85k, not worth it! It would need a rebuild for it to be worth the effort!


Here is a simple break down I put together...

-Built 2v 4.6-

Rotating Assembly: 5L Stroker 1700

Heads: 1200

Cams: 550

Long tubes and Mid pipe: Est: 600-700

Intake: Bullitt 1100, P-51 1200

Rough Est: 5300

-Cobra Head swap-

Heads: 2003 - 2 grand, 99-01 - $1000

Timing cover and Misc. assembly pieces - 300 to 400

Head Covers - 250

Intake - 375

Computer - ???

Rough Est: $2000 - 3325

-5.4 swap-

Nav 5.4 - 3200

Intake - 350

Transmission / clutch - ???

Computer - ???

Rough Est: Already close to 4 grand


This is purely an informational post. All prices assume you buy brand new.

code3GT

When I looked into doing it. I looked at a 5.4 with Navigator heads. The cost for the conversion as well as the frustration for the small gains was not worth it, in my opinion. My ideal goal was that same 5.4 with 4V heads and a single turbo, but again the cost would be sky high, but it would make some sick HP.

The block for the 4.6 and 5.4 are identical with exception of deck height. Do a google search, you should be able to find some info.

Now, with that being said...please don't take offense, of what I am now going to say....But, it's like the old saying, "If you have to ask, you can't afford it". The cost for that type of conversion, which would include built motor, exhaust, clutch, rear end, flywheel, etc. would be well over $15,000.00. As I found out with this upgrade I did, the $$ starts adding up quickly and there are som many other things that pop up that you never think about.

nanaki

just get a blower for your 4.6 and be done with it.

Acer2428

No, get forged internals and a blower for your 4.6 and be done with it.

Shii.... Get an 03-04 cobra and be done with it!