Lower 1/4 mile times, 4.10's or PI headswap?

[MyEarsHurt]

For my next mod, I planned on getting 4.10's with a hypertech programmer to fix the speedo. Well, I was reading around on stangnet today, and I found out that apparently, ALL 98 auto GT's have 3.27 from factory? Does anyone know if thats true? If so, I was thinking going to 4.10's would make a difference, but maybe not as much difference as I wanted. So then I got to thinking, after the gear cost, hypertech cost and installation cost (no way I am messing with the rear end myself) I figured I could probably get a used set of PI heads and intake, with maybe a set of cams from comp cams, for not much more then I would end up paying with the gears when all is said and done. I would have to install the heads and intake myself, but I think I could handle that with the help of some friends. So my question is this, which one will give me lower 1/4 mile times? Which one is safer? And if you had the choice, which one would you go with? Thanks for the input, as usual I would be lost in life without this forum.

 

[JonJon]

PI. With 4.10's you'd have to relearn to drive fast but with a PI swap you'd get a good amount of power that won't be hard to adjust to

 

[Sick96Stang]

Definetely the PI head swap. On some post on here I saw the the PI intake swap alone gives you right around 20 rwhp.

 

[MyEarsHurt]

Any other opinions? I just need to get as many opinions as I can before I make the big decision.

 

[MyEarsHurt]

Bump, I still need some more opinions, winter is getting close and I would be doing the PI swap while the stang is in storage if thats what I decide to go with.

 

[edcar01gt]

do the gears + programmer...

 

[Jake795]

Do the PI swap. The extra horses and compression will give you enough bottom end to hold you over on the gear swap......for a while.


Jake

 

[crazystang05]

dude pi head swap for sure and if you are doing the comp cams you will prolly put like 40rwhp id think ud be at around 240rwhp pretty repectable

 

[Josh97GT]

PI swap for sure!

Do both PI Heads and Intake and you won't be sorry, doesn't even compare to 4.10s (get those after ). A full PI swap gives most people 60+rwHP, not to mention your compression.

 

[djk8705]

PI swap!

 

[Go HoTO!]

A Head swap and cams can be good for as much as a 100 hp on non-PI cars. Case closed.

 

[MyEarsHurt]

Cool, I think I have made my decision, I will do the head swap first, and maybe do gears later. Question though, do a lot of people replace the headers while they are doing the headswap? I was thinking about getting a set of long tubes to top everything off (I just got a promotion at work, and I am itchin to spend some money here)! Question though, do I order headers for 99-04 or 96-98 with the PI Swap? I am thinking 99-04 someone correct me if I am wrong.