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Thread: whats the valve size in pyramid power pack head ?
          
   
   

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  1. #1
    james fuller is offline CHR Member Visit my Photo Gallery
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    Nov 2006
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    canton
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    ok what about the stock head compared to the power pack ? thanks!

  2. #2
    southerner's Avatar
    southerner is offline CHR Member/Contributor Visit my Photo Gallery
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    Jun 2004
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    Car Year, Make, Model: 69 Holden HT
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    Quote Originally Posted by james fuller
    ok what about the stock head compared to the power pack ? thanks!
    Do you mean the same year stock heads ?
    "aerodynamics are for people who cant build engines"

    Enzo Ferrari

  3. #3
    james fuller is offline CHR Member Visit my Photo Gallery
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    any 60's 283 stock head. was the exhaust smaller?

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