Edelbrock Performer Cylinder Heads

Discussion in 'Engine Topic' started by 1981zapper, Apr 8, 2010.

  1. 1981zapper

    1981zapper Veteran Member

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    Last edited: Apr 8, 2010
  2. 76z28

    76z28 Veteran Member

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    should if neither are vortech
    which i dont think those eddys are
     
  3. Simon@London

    [email protected] Veteran Member

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  4. tom3

    tom3 Veteran Member

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    Heads:

    50-state street legal aluminum heads for 1987-95 Chevy 5.7L engines (except LT1, LT4 and LT5 Corvettes) originally equipped with centerbolt valve covers and the 1987 and (b)later intake manifold bolt pattern(/b)

    Intake:

    Edelbrock 75011 RPM Air-Gap intake manifold
    Fits 1955-1986, 262-400 cu.in Chevrolet V8s

    Might run into a bolting problem with the center two bolts?
     
  5. 1981zapper

    1981zapper Veteran Member

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    When i go to the Jegs website and look up the heads there it says

    "Performer Centerbolt Heads
    Designed for 1987-95 Chevy 5.7L engines originally equipped with centerbolt valve covers. These aluminum heads use the 1987-95 intake manifold bolt pattern."

    Can someone show me a 1987-95 intake and is there a difference between cast iron heads and aluminum heads intakes?
    Thanks
     
  6. CorkyE

    CorkyE Veteran Member Lifetime Gold Member

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    I think the Eddy 60899 RPM head will be a better fit if you're looking to turn up the rpm's on that 327. These heads match the RPM Air Gap intake and make a real good combo.
     
  7. 1981zapper

    1981zapper Veteran Member

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    I'm going after the 60859 heads because i know someone selling them for a pretty good price, so i just want to know if i can use my Air gap intake
     
  8. Orange71

    Orange71 Veteran Member Lifetime Gold Member

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    Only difference betwwen those heads & RPM,s is they have provision for heat cross over & RPM's don't. Even though your air gap doesn't have heat cross over provision it'll bolt on with no issues
     
  9. DesmoEd

    DesmoEd Veteran Member

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    Thats not correct - look at Jegs website. They are "Performer Centerbolt Heads" - make sure you read under the correct listing


    http://www.jegs.com/i/Edelbrock/350/60859/10002/-1?parentProductId=758341

    those heads are designed for '87-'95 intake bolt pattern

    they are small chamber/runner as well (60cc and 165cc) compared to the basic Performer #60909 (64cc and 185cc)

    The #7501 intake is pre-87 so it will not work

    I have the 60909 and 7501 combo on my vette motor - its a nice street combo and made excellent power on the dyno

    Good Luck , Ed
     
    Last edited: Apr 9, 2010
  10. CorkyE

    CorkyE Veteran Member Lifetime Gold Member

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    Yea, I honestly can't answer that question, but I'm sure someone here will come in with some experience. If you look that head up on Eddy's site, you'll see that they match it with the 3704 intake, which is a TBI type.

    Actually, I think these heads are the standard angle and will take pre vortec intakes but I've never messed with them..
     

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