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'04 Mach 1 cam change

Discussion in 'New Edge Cobras' started by bossracer, Jun 19, 2012.

  1. bossracer

    bossracer New Member Established Member

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    I've read the '04 Mach 1 engine has improved heads over '01 Cobra heads, but the cams aren't as good.

    I'm putting an '04 Mach long block in my '01.

    Any thoughts on cams?
     
  2. Mystic-SVT

    Mystic-SVT snuggle fest, mmmmm! Established Member

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    Swap out the intake cams with your stock '01 cams.
     
  3. pbeechner

    pbeechner Member Established Member

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    +1 yes yes
     
  4. slick4_6

    slick4_6 Active Member Established Member

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    It would be a really good time to swap in some aftermarket cams. A good set of custom ground cams can be ran with the stock valve springs and still make good power.
     
  5. bossracer

    bossracer New Member Established Member

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    Thanks much. Anyone have results of 01 intake cams w/ '04 Mach 1 crate motor?
     
  6. Brutal Metal

    Brutal Metal Well-Known Member Established Member

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    If the motor is an assembled crate piece just leave it as is..
     
  7. soccerman002

    soccerman002 99 SVT Cobra Established Member

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    Agreed.
     
  8. 4vRedone

    4vRedone Banned

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    I would say switch the cams out but thats just me.
     
  9. Brutal Metal

    Brutal Metal Well-Known Member Established Member

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    The difference will be neglibile in both NA and forced induction applications, not worth it if you ask me, If the heads were off the shortblock disassembled and you had some cams to switch out OK..
     
  10. cobrasvtcoupe25

    cobrasvtcoupe25 Active Member Established Member

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  11. bossracer

    bossracer New Member Established Member

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    thank you all for the words. I think I'll just leave them alone. Car is a daily driver for now.
     
  12. Roots-type

    Roots-type R-code Established Member

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    ~20* of more duration is negligible? ok.
     
  13. Stopsign32v

    Stopsign32v Well-Known Member Established Member

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    If the motor is out, put in different cams and have them degreed. Stock the cams can be all over the place. Go custom, OTS, or 96-98 cams. If the motor is in the car don't worry about it, run stock.
     
  14. na svt

    na svt say no to power adders Established Member

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    It takes about 4 hours to do a cobra intake cam swap and for 20rwhp thats pretty good. People spend 10 hours and $1000 for headers to make less hp.

    Negligeable?
     
  15. bossracer

    bossracer New Member Established Member

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    Ok, now they're in. Engine is out. probably go quicker.

    Thanks.
     
  16. Brutal Metal

    Brutal Metal Well-Known Member Established Member

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    01 intake cams are gonna make a solid 20RW difference over 03-04's?
    5 speed Mach's stock on our dyno will put down numbers very similar to the 99-01 Cobra's, surely not a 20 difference..How do you account for that the intakes? Also a stock Marauder with a new tune file put down 300:shrug:
     
  17. slick4_6

    slick4_6 Active Member Established Member

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    Better heads.

    Sent from my DROID RAZR using Tapatalk 2
     
  18. Bmeagher

    Bmeagher Seriously Northern Established Member

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    I've gained 23rwhp SAE with the 98' Cobra cams on my Mach. I've never seen a stock Marauder with a tune, especially a Auto put down 300.
     
  19. Mystic-SVT

    Mystic-SVT snuggle fest, mmmmm! Established Member

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    You forget Mach motors have slightly better heads, intake, and higher compression than 99-01 cobra motors, theres the difference.
     
  20. na svt

    na svt say no to power adders Established Member

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    96-98s will be add 20rwhp, 99/01s will make a little less as they have a couple degrees less duration.

    The gains made by these cams is well documented.
     
    Last edited: Jun 24, 2012

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