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Thread: 454 block with 366 crank &502 heads
          
   
   

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  1. 01-25-2010 09:22 AM #2
    pat mccarthy's Avatar
    pat mccarthy
    pat mccarthy is offline CHR Member/Contributor
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    you can use the 502 heads on the older block well i have got a way with it but you need to add the cooling holes in the 427/454 deck lower row and used the 502 head gaskets not the 1976 454 head gaskets. yep what you have is a 427 .many have done this you just use 427 pistons as the CH is not the same as the 454 all 366to 502 gm rods are the same 6.135 .crank 366.396.402.427.are all 3.766
    Last edited by pat mccarthy; 01-25-2010 at 12:19 PM.
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