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need wrench nuts help???

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by solowookie, Aug 1, 2001.

  1. solowookie

    solowookie 1/2 ton status

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    ok,

    I think capt. has already answered this, but I don't remember.

    I am putting Vortec heads in my new K5, and I'm wondering if I can use the stock manifold, or use the headers designed for the year or my K5.

    I am hoping that I do not have to use vortech headers ($$$).

    [​IMG] <font color=blue> Jeff </font color=blue> [​IMG]
     
  2. 83ZZ502_Jimmy

    83ZZ502_Jimmy 1/2 ton status

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    The intake is different... But the exhaust is the same. Should be no problems in bolting on stock exhaust manifolds or headers.

    JH

    '83 GMC Jimmy 4x4 ZZ4 Crate Motor
    '83 Chevy K20 Sand Drag Racer, 578 RWHP
    '94 Impala SS
    '01 Chevy 2500HD 4x4 w/8.1L & Allison Auto
     
  3. solowookie

    solowookie 1/2 ton status

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    hey, thanks for the info...

    I was pretty sure the 2 were interchangable, but I wanted to verify things before I ordered headers.

    [​IMG] <font color=blue> Jeff </font color=blue> [​IMG]
     
  4. denver75k5

    denver75k5 1/2 ton status

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    The two Center bolts(both sides) on the intake will be angled on the v heads, as opposed to str8 on the old heads.

    " Wider IS Better!!!"<a target="_blank" href=http://www.community.webshots.com/user/wheelininco>www.community.webshots.com/user/wheelininco</a>
     
  5. 84_Chevy_K10

    84_Chevy_K10 Banned

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    denver75k5,

    It sounds like you're takling about the regular centerbolt intake. The vortecs may do this, I am not sure. I KNOW that the intake runners are higher and that's why the intake is different.

    Tim
    '84 Chevy K10, lifted, loud, fast, and 3/4 ton axles
     
  6. Cavalry

    Cavalry 1/2 ton status

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    I ran into a problem on my 84 with the #8 exhaust bolts. The vortec heads lack the double bolt pattern. Your 89 should have the right ones though

    "There is a fine line between hobby and mental illness"
    Luke
    84 K5
     
  7. solowookie

    solowookie 1/2 ton status

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    I called Jim Pace Chevy, capt. gave me their number cuz they sell LOT's of vortec's, and they told me that it would be no problem. I would have to plumb in the EGR valve to the headers, but other then that no problem.

    they sold me a little 'kit' to plumb the EGR valve in. (so that's the 'official' skinny on this).

    [​IMG] <font color=blue> Jeff </font color=blue> [​IMG]
     
  8. denver75k5

    denver75k5 1/2 ton status

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    Cool, then :) "MORE POWER!!!!

    " Wider IS Better!!!"<a target="_blank" href=http://www.community.webshots.com/user/wheelininco>www.community.webshots.com/user/wheelininco</a>
     
  9. solowookie

    solowookie 1/2 ton status

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    <blockquote><font class="small">In reply to:</font><hr>

    Cool, then :) "MORE POWER!!!!

    <hr></blockquote>

    yea, me and Tim the tool may Taylor! LOL [​IMG]

    [​IMG] <font color=blue> Jeff </font color=blue> [​IMG]
     
  10. '73 K5

    '73 K5 1/2 ton status

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    The Vortec heads swap is without a doubt the best thing I've done to my engine. HUGE power increase. And yes, your exhaust will be fine. I used the same exhaust setup I had on my old heads.

    '73 K5
    Chevy good...Ford bad
     
  11. solowookie

    solowookie 1/2 ton status

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    <blockquote><font class="small">In reply to:</font><hr>

    The Vortec heads swap is without a doubt the best thing I've done to my engine. HUGE power increase. And yes, your exhaust will be fine. I used the same exhaust setup I had on my old heads.

    <hr></blockquote>

    hey that is good to know cuz now I'll have somebody to through a few questions at if I run into problems.

    [​IMG] <font color=blue> Jeff </font color=blue> [​IMG]
     
  12. Mr.Chevy4x4

    Mr.Chevy4x4 1/2 ton status

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    There are no center bolts on Vortec heads. There are only 8 bolts that attach it, 2 at each corner(requires special shouldered bolts). GMPP is now producing an intake for use with TBI, but it is around $240. If you are running a carb, Edelbrock makes several that will work(performer, RPM, and air gap) I personally think that the Vortec heads are one of the best upgrades that you can make. Good luck!

    '85 K5 : Run it til it breaks, then fix it and go again!
     
  13. solowookie

    solowookie 1/2 ton status

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    actually I'm getting the new intake that is compatible with TBI. I'll let everybody know how it all works out!

    [​IMG] <font color=blue> Jeff </font color=blue> [​IMG]
     
  14. '73 K5

    '73 K5 1/2 ton status

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    I didn't have to worry about the TBI part of it, but yea if you have any questions, just PM me about it. Good luck.

    '73 K5
    Chevy good...Ford bad
     

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