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  • 2 Post By glennsexton

Thread: Building a engine for my 83 Gmc short bed pick up
          
   
   

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  1. #1
    wagonburner1963 is offline CHR Junior sMember Visit my Photo Gallery
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    Building a engine for my 83 Gmc short bed pick up

     



    what type head gasket do i use when i put a 1964-1967 327hp double hump heads on a 1969-1979 350hp block please help

  2. #2
    rspears's Avatar
    rspears is online now CHR Member/Contributor Visit my Photo Gallery
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    Car Year, Make, Model: '33 HiBoy Coupe, '32 HiBoy Roadster
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    Hey Wagonburner, welcome! I can't help with your number, but hopefully one of the guys like Glenn Sexton (glennsexton) will see your post and give you benefit of his years with SBC's! Glad to have you here.
    Roger
    Enjoy the little things in life, and you may look back one day and realize that they were really the BIG things.

  3. #3
    glennsexton's Avatar
    glennsexton is offline CHR Member/Contributor Visit my Photo Gallery
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    Car Year, Make, Model: 63 Nova SS
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    Welcome to CHR!

    Can you tell us a little bit about the build?
    1. Is the 350 stock (4.000) bore?
    2. Have you measured the block to make sure head mating surfaces are square (to the crank) and flat?
    3. Has the block been surfaced?
    4. Has the block been cut? (Stock is 9.025”)
    5. Are the heads stock? (And why are you using 50 plus year old heads? They typically have small chambers for the high-octane fuel readily that was available at the time they were used by GM. Are they 1.94 intake/1.50 exhaust or 2.02 and 1.60? Finding a good set is not easy and you'll need to have them magnafluxed bofore use.)
    6. What pistons are you using?
    7. What cam geometry are you planning on using? (i.e., duration @ .050”, rocker arm ratio(s), and lobe separation
    Fill in the blanks and we can certainly help you out.

    Best,
    Glenn
    NTFDAY and rspears like this.
    "Where the people fear the government you have tyranny. Where the government fears the people you have liberty." John Basil Barnhil

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