Whats The differance between 96 4.6 and 03/04 4.6

Discussion in '96-04 - 4V Specific' started by uncltrvlnmatt, Sep 21, 2006.

  1. uncltrvlnmatt

    uncltrvlnmatt Legend

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    Besides the supercharger, what are the major differances.

    Will putting a supercharger on a 96 engine give you the same horsepower/torque?
     
  2. Bullitt

    Bullitt New Member

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    you'll need both heads, because bolts holes in heads are diferent in both models, therefore the roots blower doesn''t lines up on a 96 4.6, youll need some fuel upgrades, youll also need all the brackets and accesories from a 03-04, so that the belt lines up, the other good diference is that the 96 block is aluminum and the 03-04 is iron, so you'll take of some weight, for all the work that's needed to put a M112 supercharger on a 96 engine ill get a Vortech/ Paxton centrifugal and have fun instead of problems...
     
  3. Lightning Struck

    Lightning Struck Legend

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    You mentioned the super charger ..........so I assume you are talking about the dohc 4.6 in the cobras. The 03/04 has diffrent heads, block, pistons ( that should be obvious to the novice gear head since the motor was built for a blower from the factory ) Just to put a blower on a pre 03 4.6 will net great gains and be a little more than a STOCK 03 Cobra. ATI Procharger like the stage 2 kit I want will make around 450rwhp on a stock 99 Cobra very similar for the 96-98 ones as well. Even more if you have other mods like exhaust / heads / cams and so on. The big advantage to the 03 motors is that they were assembled to be forced induction motors, they already have forged internals with low compression...........they are the shit. :khobra: :khobra:
     
  4. 97vertstang

    97vertstang Well-Known Member

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    the 03 uses a iron block, different heads, forged pistons, manley rods, 8.5:1 compression perfect for forced induction. a 96 engine has a teksid aluminum block, b heads which are better for high revving forced induction.however hypercrap pistons, crappy rods(cast??? :dunno:) and 10:1 compression.the heads and the block are perfect for forced induction but the rotating assembly is where u have to work.with a new 8.5:1 forged rotating assembly and a ati procharger, ull be 450rwhp+ and owning 03 cobras.
     
  5. Dalamar

    Dalamar Legend Retired Staff SN95 Supporter

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    what blower are you looking at?
    it depends on the combo.

    You really can't compare 2V #'s with the 4V stuff.

    on KB's site it says HP numbers are the same If PI heads are used...on the 99-up supercharger on the 96-98's.
    PI heads/intake is the Main difference on the 2V's.

    THey also get heavier as the years add up.
     
  6. Lightning Struck

    Lightning Struck Legend

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    yea I'll own them until I come up on one that has exhaust and a set of pulleys :mad:
     
  7. uncltrvlnmatt

    uncltrvlnmatt Legend

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    I should have specified that the 96 is a 4 valve Cobra engine.
     
  8. 97vertstang

    97vertstang Well-Known Member

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    thats why u thro more stuff at ur car :naughty: remember its only money ;D
     
  9. Lightning Struck

    Lightning Struck Legend

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    oh sure let me get some from under my mattress :hammer:
     
  10. Dalamar

    Dalamar Legend Retired Staff SN95 Supporter

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    Well a posative is a lot of fun on the street, but KB doesn't make one for that year cobra

    So you're looking at a posative.
    Vortec
    ATI - Procharger
    Novi

    I'd go intercooled if you can swing it.
     
  11. Lightning Struck

    Lightning Struck Legend

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    the intercooler is a MUST, if you want the blower and motor to have increased life, and on top of that ( as if that is not reason enough ) the cooler will give you a 10-15% increase in hp and tq. Its worth the money............get the cooler :)
     
  12. 97vertstang

    97vertstang Well-Known Member

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    what about that money tree u got outside??? ;D