Need some help/advice. In my 1998 F-150 4.6L with 170k miles I want to get 400rwhp out of it after a reuild. The only way to do it is with either a turbo or a supercharger. It'll be a daily driver.

I set a budget for around 6k +/- 1k.

I was planning on doing this when I am away at sea next winter.

I live in the Hampton Roads area in VA. Does anyone know/suggest someone to do the work?

Is this realistic or should I find a used 5.4 and go naturally aspirated.

 

7 grand max? mmmmmm

trans mods, fuel system mods, you may be able to find a used supercharger kit to help out, but you're gonna need a forged bottom end and probably about 18# of boost on unported heads

 

im not to sure about this but it you dont mess up on the build and everything goes perfect you might be able to get 400. but in real like no its gonna cost a little more than 6k.... It can happen but then after awhile your rear end is gonna go bad because of the torque... then a long list

 

4v 4.6 with ported heads and alot of bolt ons and you should be around 400/400


2v 4.6 i doubt you can squeeze that much on stock bottom end and still call it reliable. You are talking about 10-12 PSI to get you up to 400

 

OK then, how about with a 5.4 if i swap one in?

how much can i expect with a 4.6?

 

a stock long block 5.4 with 15psi will make almost 400 but's living on borrowed time

 

so what can i expect out of my 4.6 if I add air to it?

 

400rwhp is possible with a 2v 4.6 on a stock bottom end with a safe tune.

My mustang's 4.6 is over 400hp on 9psi of boost.

I doubt you would be able to keep your budget under 6-7k including rebuild and power adder.

 

yeh ive got a friend whos making 438rwhp with 17degree of timing one 13psi on a p1sc stock auto transmission shift kit and a stall.

 

What blowers are a bolt on for the 2v 4.6.
whats the difference between the mustang 03/04 4.6
a regular mustang 4.6
and the 2v f150 4.6

I know the cobra mustangs have are different down to the cranks.
but could you just bolt in the cobra 03/04 4.6 into the f150.

or is your best cheap bet to swap to a Lighning motor. there like 380 hp stock right? im sure you could do that swap for the money your talking.

maybe in the mean time ill look it up and figure this out.
found this. http://www.latemodelrestoration.com/...48SQ1&comp=LRS

http://www.horsepowerfreaks.com/perf...ercharger_Kits

but that seems expensive for only 74 safe hp ????????
Thanks

 

Toss on a 03 Mustang GT blower on it, true duals, LT headers, and 4.10's out the back and you should be close.

 

just swap a lightning engine

 

+1
http://search.ebay.com/search/search...ine&category0=

Phil

 

if your dead set on a 4.6...03-04 cobra swap. its rated at 390 horses and its easily upgradeable

 

I would also like to know if its possible for a 2v 4.6L sohc engine to make 400 HP. Without swapping in another engine.