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Technical Evans heads

Discussion in 'Traditional Hot Rods' started by nuppi, Aug 5, 2020.

  1. nuppi
    Joined: Aug 7, 2016
    Posts: 10

    nuppi

    Hi. What does the evans heads combustion chamber originally look like? I have these old evans on my 59a and thinking if they are milled too many times, heres a picture of one head with best gasket big bore gasket.

    There is about 5 millimeter flat spot around the combustion chamber, is that normal, or should the round shape continue to the gasket edge.

    thanks, ossi
     

    Attached Files:

  2. alchemy
    Joined: Sep 27, 2002
    Posts: 16,870

    alchemy
    ALLIANCE MEMBER

    Usually heads were domed to about 3-5/16" for use on those big bore engines. I'd say yours have been milled.
     
    Gruntis likes this.

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