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Quick question: F22/20B DOCH head on F22Ax soch block

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    #1

    Quick question: F22/20B DOCH head on F22Ax soch block

    F22B or F20B DOHC head on F22Ax SOHC block
    Has anyone done it? Is it even possible? I'm no engine expert and I have no idea if the stroke and all that has any effect. I am simply curious. Thanks for your help!

    O_O.... Spelt DOHC and SOHC wrong.
    Last edited by Gathers; 07-07-2010, 01:42 AM.
    Tags: None
    #2
    Yes, it has been done. It's pretty much a direct swap.

    However, rather than getting a DOHC head, why not put money into modifying the SOHC head for more flow? The port design of the SOHC is superior to the DOHC.






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      #3
      I agree with retaining the F22ax head instead and have it reconditioned. Then, choose to upgrade the F22ax SOHC camshaft and if you have money port the head.

      The F20A SOHC or DOHC heads and JDM F22B DOHC heads are mated to their respective stock blocks which have higher static compression than stock F22ax (8.8) through different pistons. Simply swapping the heads over, will lose out on the static compression increase.
      HondaFan81 For Sale Parts (LOW PRICES ON EVERYTHING)

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        #4
        I see, well thanks for clearing that up guys. Though I like the idea, I think it's slightly impractical. Thanks again.

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          #5
          Originally posted by Gathers View Post
          I see, well thanks for clearing that up guys. Though I like the idea, I think it's slightly impractical. Thanks again.
          Yes, it does. You're better off swapping the entire engine for the full benefit (i.e. JDM F22B DOHC, JDM F20A SOHC or DOHC).

          If you really can complete a swap, given previous discussions about your limitations, consider Kevin's swap. He's selling for a great price, PM him about it if interested.

          However, I still think you're best off getting a decently maintained & running car.
          HondaFan81 For Sale Parts (LOW PRICES ON EVERYTHING)

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            #6
            y not just use the f22b dohc block and the f22a head.u dont have to upgrade the pistons cause it will up them to 9.3:1 and ull have the pefect flowing head.\this\/\/
            http://www.cb7tuner.com/vbb/showthread.php?t=130329
            Last edited by 92smokeaccord; 07-07-2010, 05:47 PM.

            my new turbo build

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