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Thread: Piston confusion
          
   
   

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  1. #1
    bluestang67's Avatar
    bluestang67 is offline CHR Member Visit my Photo Gallery
    Join Date
    Sep 2006
    Location
    New Lenox
    Car Year, Make, Model: 67 Mstg cpe , 37 Ford Coupe
    Posts
    2,787

    Piston confusion

     



    Took this pic , I pulled the one on the left from my 84 HO 5.0 engine . The one on the right I pulled from the 69 block why would you want a recess not stock right . . The recess in the one from the 69 looks like some Sealed power one's I seen on ebay , they are beefier when the pin goes thru . Think is the recess has to for compression drop right , If I am correct from reading they would give me a 8.9-1 CR . Really was looking for the mid 9.5-1 ratio , sad thing 3 of the pistons from the 84 have broken ring lands . But the flat tops wit reliefs would be the better set right ????

    Last edited by bluestang67; 04-08-2010 at 05:26 PM.

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