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Thread: porting 4ac head

  1. #1
    Senior Member Marco's Avatar
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    Default porting 4ac head


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    Ok i know what you are all going to say: don't bother. Your and idiot. get a 4age. go to bed looser. and the rest of it.

    But story goes: i am going to be restricted by new p'plate laws. im already only on 1 point. and my mate actually enjoys doing heads. so we want to mess around with mine, hes got the gear iv got the spare head and manifold. all i need to know is has anyone ever done it before and how far did you go?


    Cheers,
    marco.

  • #2
    todd
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    Quote Originally Posted by Marco View Post
    and my mate actually enjoys doing heads.
    your mate have a phone number?
    cheers <3

  • #3
    Senior Member Marco's Avatar
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    lol. no but his g/f does. hehe. what do you need done. he needs money bad so im sure we would be able to sort something out yeah what do you want ported?

  • #4
    Veteran Jonny Rochester's Avatar
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    Good practice (if you had a flow bench), but probably a waste of time unless you also had a different carby and exhaust manifold. And it probably needs different valve springs and cam etc.

  • #5
    Senior Member Marco's Avatar
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    yeah he has all the proper gear. his dad is a motor geek. will probs be doing a carby and custom extractors for shits and giggles( work at a exhaust shop) mayaswell do valves and springs. and get the cam ground. you have any idea what specs i should get. and whats good carby i can get that will bolt onto the standard manifold with a spacer?
    Cheers. anything else you can think of would be awesome thanks.

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    Site Supporter Driftspec's Avatar
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    Weber carbies bolt on with an adapter plate, just don't ask me what ones, lol.

    Plenty of people have worked 4ACs in the past, each with decent results. Replacing cams, carby, just off the top of my head (it is a bit late). I might have to dig through the various info I've bookmarked over the years, see if there is anything in there.

  • #7
    Senior Member Marco's Avatar
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    ^ awesome. cheers mate. and i am just wondering what carby everybody recomends me to get? i have head 32/34 webber and iv have head 32/40 webber. so if anybody could recomend me one/ sell me one that would be great.

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    32/36 falcon webber
    MY JZX83 (clicky)
    My Beams Powered AE86 SOLD (clicky)

    Quote Originally Posted by destroyer View Post
    Too bad im in the same town as dr1ft-p1g im pretty sure his mx83 is the coolest.

  • #9
    Moderator Sam-Q's Avatar
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    although its a bit limited there are some sharp steps near the port entrance to the valve bowl that can be cleaned up.
    My website: SQ Engineering - 4AGE and 3SGE upgrade/replacement parts

    - SQ Engineering on facebook -

    Please e-mail to contact me instead of sending a private message on here.

  • #10
    Senior Member Marco's Avatar
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    ^ thanks mate will get my mate to have a look at that.

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