4.6 to a 5.4, is there a sticky??
09-21-2010, 05:58 PM
#2
6th Gear Member
Join Date: Aug 2009
Location: New Jersey
Posts: 6,028
depends on what your goals for the car are man, a 5.4 V8 swap will probably only yield 275-290 horse....Are you look for 350? 400? 600? There are far more cost efficient ways to achieve a higher horsepower goal....
09-21-2010, 06:02 PM
#3
5th Gear Member
Join Date: Aug 2007
Location:
Posts: 3,189
moddedmustangs.com and search for threads started by a guy named 330cubegt. its a very good writeup for swapping in a 2v 5.4L.
HOWEVER, you need to know, that doing the 5.4 2v swap is going to cost you quite a bit of money for very little power gain over a PI 4.6L.
that motor is only rated for 260hp and 350tq stock (compared to 260/300 on a PI gt). unless your doing a 3 or 4v dont waste your money IMO. the only reason i would ever do this swap is if i found the motor dirt cheap in running condition, or my motor was blown.
if your motor is still running strong, a cheaper and easier option would be just to PI swap your car. the only difference at that point is less than 50tq since your compression will be higher than a standard PI gt. you can buy everything you need for a PI swap for a few hundred bucks. the 5.4 motor, manifold, and whatever else you end up buying you can spend 2000$ or more.
HOWEVER, you need to know, that doing the 5.4 2v swap is going to cost you quite a bit of money for very little power gain over a PI 4.6L.
that motor is only rated for 260hp and 350tq stock (compared to 260/300 on a PI gt). unless your doing a 3 or 4v dont waste your money IMO. the only reason i would ever do this swap is if i found the motor dirt cheap in running condition, or my motor was blown.
if your motor is still running strong, a cheaper and easier option would be just to PI swap your car. the only difference at that point is less than 50tq since your compression will be higher than a standard PI gt. you can buy everything you need for a PI swap for a few hundred bucks. the 5.4 motor, manifold, and whatever else you end up buying you can spend 2000$ or more.
09-21-2010, 10:09 PM
#5
4th Gear Member
Join Date: May 2009
Location: DFW, TX
Posts: 1,925
You get added torque, but you lose any chance of cheap intakes and exhaust. Plus your hood has to be right. With the HPS intake, you can see a serious increase in power over that 260/350. Everyone I have ever talked to that did the 5.4L swap didn't regret it. Moddedmustangs.com is the place, 330cubegt has a writeup and sharkbait just did the swap.
09-21-2010, 10:43 PM
#6
Go Texas!!!
Join Date: Jul 2009
Location: Lincoln, NE
Posts: 4,613
A guy over at Modular Ford swapped in a STOCK '04 Navi motor with Cobra headers and I believe the Boss intake. Guy made like ~325/360. Not bad for a stock Navi motor.
Edit: Exact numbers were 325/370 with the Aussie Boss intake
Edit: Exact numbers were 325/370 with the Aussie Boss intake
Last edited by WannaBeGearHead; 09-21-2010 at 10:46 PM.
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