getting into a 4.6 soon

Pi headswap it you don't plan on supercharging it. And if you don't want to get into the whole head swap thing you can do the intake for a nice little gain and mabe even some cams. O0

 

You can supercharge a stock 4.6 Stang. All you need is the whole kit. I would wait and forge my lower end. The rods on the 4.6 are crap.

 

Nope... not unless you are planning on going over 400hp.

 

In a nut shell, the 281 block is much stronger than a pushrod.

NPI heads (stock) are anemic and don't flow well at all, there's options to swap the IM, Cams, or the whole head/cam intake to the 99 and up version. That's the PI headswap.

The rods are cast, but they can get you into the 400 HP range.

there's a number of options avaliable, and of course a blower is good as well.
It depends on what you want to do, on what I'd recommend. how much powa, and $ you have avaliable.

 

i say skip the boltons and buy a used blower, can pick them up for around 1500 all day long....

 

list what you've got

 

nope, you've nailed them.

your next step would be the PI stuff, and/of blower.
the rest is a waste of money IMO.

 

you could spray it.

Oh, and despite what some say you can SC it after the PI headswap...Just dont get crazy with the boost and get a great tune.

 

the procharger kit and full exhaust.....those 4:10s will be fun, get some drag radials ASAP!

 

low 300's with the blower.

if you want more you'll need the headswap, all or part.

 

Yes 99 up are PI heads.

 

Yep, that's the one.

 

Get a cheap used Vortech for around 1200 to 1500 as suggested for a low 300 rwhp number on the stock kit.

Swap the intake and port the heads, or swap them for PI ported with blower cams for in excess of 400 rwhp. Otherwise, motorwise, everything else is unfortunately, a waste.

You can get a set of Steen racing ported NPI heads for 700, swap some good cams in them, and the PI intake, along with a Vortech and you have an easy 360 to 400 rwhp car for an investment of about 2500 bucks.