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  • 2 Post By pbotti
  • 2 Post By pbotti
  • 1 Post By rumrumm

Thread: Vortec heads
          
   
   

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  1. 06-08-2014 12:31 PM #2
    techinspector1's Avatar
    techinspector1
    techinspector1 is offline CHR Member
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    Car Year, Make, Model: '32 Henway
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    I'd estimate the static compression ratio of a 400 with stock pistons and 906 heads at 10.8:1, too high for cast iron heads and pump gas. 76 cc heads would make a 9.6:1 SCR and would work better with pump gas. If you are planning a street motor, drill the heads for steam holes like the factory did.....
    http://www.gregsengine.com/convertin...ds-to-400.html


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    Last edited by techinspector1; 06-08-2014 at 12:33 PM.
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