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Thread: Vortec heads
          
   
   

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  1. 06-11-2014 02:55 PM #1
    techinspector1's Avatar
    techinspector1
    techinspector1 is offline CHR Member
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    Quote Originally Posted by Dave Severson View Post
    I don't have the numbers, but quite sure the 441's will outflow and outperform the 906's....
    Ummmm, not quite Dave. The L31 heads are the best flowing production cast iron heads that Chevrolet Motor Div ever produced. The 441's don't even come close. Here's a decent tutorial.....
    http://www.crankshaftcoalition.com/w..._cylinder_head
    I've been told that the runners were patterned after the aluminum LT1 heads, but cast in iron instead of aluminum.

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    Last edited by techinspector1; 06-11-2014 at 03:00 PM.
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