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Thread: What compression ratio?
          
   
   

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  1. 04-29-2012 05:40 PM #1
    pat mccarthy's Avatar
    pat mccarthy
    pat mccarthy is offline CHR Member/Contributor
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    here is the trw line up l2268f 106.9cc=11.6cr with 116 cc =10.14cr ...l2300f 100.9cc=9.86 116cc=8.73 .030overwhat is the piston number you have should be the l2300f that is a 66-69 427.335hp and 390 hp 060 over bore is closer to you listed as 100.9cc=10.10 cr and at 116 cc=8.83 cr if bore smaller then so is your CR what bore is it ?
    Last edited by pat mccarthy; 04-29-2012 at 07:15 PM.
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  2. 04-29-2012 06:39 PM #2
    crossram409
    crossram409 is offline CHR Member
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    The bore is 4.25 standard. The heads are the stock heads that came on the engine, 390hp, 1968 corvette.
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