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4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

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Old 06-27-2013, 09:24 PM   #11
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so the heads on my 98 are crap ? what heads are you talking about swapping them to
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Old 06-27-2013, 09:37 PM   #12
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99-04 gt heads and intake manifold, performanced improved heads aka PI heads
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Old 06-27-2013, 10:34 PM   #13
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Quote:
Originally Posted by MidNightRunner View Post
Gears, gears, gears!

3.73 or 4.10

Don't even bother putting shorty headers before this.
change the axle, you'll get more benefits and it's probably cheaper on a 1996 gt
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Old 06-27-2013, 10:44 PM   #14
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Quote:
Originally Posted by uberstang1 View Post
99-04 gt heads and intake manifold, performanced improved heads aka PI heads
ok thx man.. this is my 1st car above 74 that im making a street car out of lots to learn with this thing
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Old 06-28-2013, 06:08 AM   #15
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Quote:
Originally Posted by cariacou View Post
change the axle, you'll get more benefits and it's probably cheaper on a 1996 gt
All the mustangs gts from 79 to present have an 8.8 and pinion so price should be the same.
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Old 06-28-2013, 07:05 AM   #16
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Quote:
Originally Posted by uberstang1 View Post
99-04 gt heads and intake manifold, performanced improved heads aka PI heads
That would be the way to go for the top end for sure. I've heard somewhere that the IM and the heads just as bolt-ons are a good 25-40hp boost, not sure if this was ever verified or not though.
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Old 06-28-2013, 07:12 AM   #17
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Originally Posted by j-town_edge View Post
That would be the way to go for the top end for sure. I've heard somewhere that the IM and the heads just as bolt-ons are a good 25-40hp boost, not sure if this was ever verified or not though.
Ive seen non pi headed 2vs with full bolt ons including long tubes and they only put down 190rwhp not sure what they put down bone stock but long tubes and bolt ons get expensive, first step would be put that money towards the headswap in my opinion.
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Old 06-28-2013, 01:12 PM   #18
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^^^ True. If you're going to spend the money, might as well go heads. Can always get the long tubes stuff later.
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Old 06-28-2013, 06:56 PM   #19
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I did a PI swap on a stock and I mean bone stock 98 gt, after a tune it put down like 265 RWHP or so. So not to beat a dead horse but do the head swap, then bolt ons.
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Old 07-19-2013, 09:37 AM   #20
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Do use shorty headers. Stay stock or go long tubes.
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