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exhaust out the hood?

Discussion in 'The Garage' started by 79mudder, Jan 14, 2007.

  1. 79mudder

    79mudder Registered Member

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    i want to make mine go straight up and out. ive seen where they take a header flip it over and put like a 6 in round chrome tip on it , i think there called tight fit or block headers. searched on ebay and they want like 110.00 for them. and the pipes are like 50.00. so iam trying to figure out what regular exhaust manifold i can use upside down and with the exit go stright up. one guy told me to find ones that go on some 327 s. any one got any ideas.
     
  2. Chrisblazzer89

    Chrisblazzer89 1/2 ton status

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    I dont have any idea but i sure want a pic of this when ur done.
     
  3. 79mudder

    79mudder Registered Member

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    chrisblazzer89 the best way i can describe them is what they use on demolition derby cars. i dont know how you guys make where there is another site that you want to go to while you are reading apost and you click on it and it comes right up . i m kind of computer iliterate but if you search ebay under auto and search small block chevy headers demolition derby chrome . they are exactly what i want. or you can search demolition derby headers or tractor pull headers.
     
  4. Confedneck79K30

    Confedneck79K30 3/4 ton status

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    why out the hood? so they can fill with rainwater?
     
  5. k20

    k20 3/4 ton status

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    your talkin about zoomies aint ya...there was a pic posted on here awhile ago, IIRC the guy had dual wheels from & rear and the thing was painted white.
     
  6. Confedneck79K30

    Confedneck79K30 3/4 ton status

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    just buy header flanges and make your own, probably the easiest way possible... i think it looks cool with them straight out the wheel well...
     
  7. chrisb420

    chrisb420 1/2 ton status

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    this what your talking about search for rock ape and you will find the rest

    rock ape.jpg
     
  8. 3 on the tree

    3 on the tree 1/2 ton status

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    The manifolds you want were used by GM into the 70s. Rams horn, is what I call them. Look for early 70s trucks in salvage yard.:D
     
  9. Confedneck79K30

    Confedneck79K30 3/4 ton status

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    those are the ones where the "collector" is in the center, as opposed to the back, correct?
     
  10. beater_k20

    beater_k20 Banned

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    dont use center dumps, you'll run into the MC. we've tried it before on derby trucks. block hugger headers do the same thing, so those are out too.

    the headers you see on Ebay, i'm assuming are these.
    [​IMG]
    i actually had to remove the power booster to get these to clear, and even then they BARELY cleared.

    what you need is a forward dump header...
    [​IMG][​IMG]

    www.decheaders.com expect to pay ~$150 for a set of headers in 1 1/2" with the proper forward offset though.
     
  11. Chrisblazzer89

    Chrisblazzer89 1/2 ton status

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    BTW the easy way to link a page is to copy the link in the address bar on top of the page and them past it on ur reply/write up
     
  12. beater_k20

    beater_k20 Banned

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    oh, and in stock mounts, they'll barely clear the hood...
    [​IMG]
    [​IMG]
     
  13. 3 on the tree

    3 on the tree 1/2 ton status

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    Just an idea. Use the later rear dump manifolds, turn them over and swap sides, so the outlet is in the front.
     
  14. 79mudder

    79mudder Registered Member

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    i put an ad on another site and a guy had just called me and said he custom makes them and he lives a hour and half from me cost is 115.00 he makes them 4 into 1 or as he called them corn rows like in the pictures of beater k20 iam going to get the 4 into 1 thanks for all the info. and its simple just cover them when it rais or put it in the shed.
     
  15. broncoman6524

    broncoman6524 1/2 ton status

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    are you sure that this will give you enough backpressure to not burn your valves??? bc this is basically hte same as open headers and i though with that you will burn up your valves...
     
  16. beater_k20

    beater_k20 Banned

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    make DAMNED sure he'll make them to clear your booster/mc. the upward bend in them will have to be VERY tight in order to pull it off. unless you can talk him into forward dumps like i posted from DEC.
     
  17. BlaKK54Speed

    BlaKK54Speed 1/2 ton status

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    i like the staggared top turn outs from dec
     
  18. 79mudder

    79mudder Registered Member

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    yeah i got alot of measureig to go over with him and to broncoman6524 s reply will it have anough back pressure so it wont burn up the valves? cause i see alot of mud trucks have them around here. i ll check back into this thread tomorrow after work.
     
  19. beater_k20

    beater_k20 Banned

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    we've got a couple sets that we run that are WAY shorter than those, and have yet to burn a valve.
     
  20. 454k30

    454k30 1/2 ton status GMOTM Winner

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    I can already hear my neighbors calling the cops!
     

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