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Thread: Bb Chevy Heads?
          
   
   

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  1. #1
    CHUBBY2's Avatar
    CHUBBY2 is offline CHR Member Visit my Photo Gallery
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    Mar 2005
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    SUMMERVILLE
    Car Year, Make, Model: 1967 CHEVY II
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    23

    Question Bb Chevy Heads?

     



    Help, I need to find someone that can tell me the intake and exhaust valve sizes that are installed in the following heads.
    casting # 3931063 closed chamber date code D11-9
    casting # 3964290 closed chamber date code H20-9
    The heads are virgin rebuildable as removed oval port. Are there any differences between these heads except for cast #'s and dates?????

  2. #2
    86cutlass's Avatar
    86cutlass is offline Registered User Visit my Photo Gallery
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    lebanon
    Car Year, Make, Model: 86 olds cutlass
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    Re: Bb Chevy Heads?

     



    Originally posted by CHUBBY2
    Help, I need to find someone that can tell me the intake and exhaust valve sizes that are installed in the following heads.
    casting # 3931063 closed chamber date code D11-9
    casting # 3964290 closed chamber date code H20-9
    The heads are virgin rebuildable as removed oval port. Are there any differences between these heads except for cast #'s and dates?????
    how do i tell what sizes my heads are?

  3. #3
    grunch's Avatar
    grunch is offline CHR Member Visit my Photo Gallery
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    mauriceville
    Car Year, Make, Model: 71 corvette vert BB 6spd 2x4
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    41

    both # are same applacation. 396/402, 325/350 hp, 100.9cc, 206 intake/172 ex.

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