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Thread: B20A head To A20A3 block

  1. #1
    DX User dpax's Avatar
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    B20A head To A20A3 block

    what would happen if I bolted a B20A head to my A20A3 block? I have access to the B20 engine,but is has lower end problems. thought maybe I could at least benefit from the head,dual cams,etc. would this work? what distributer do I use?any thoughts?
    86 ACCORD LX
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    89 ACCORD LX-i
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    86 TOYOTA MR2
    (complete rebuild 9/02/09- (+0.50, Crower cams, TRD intake + exhaust))
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  2. #2
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    Re: B20A head To A20A3 block

    Then you would get a non functioning engine... And there are several reasons for that.


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    AccordB20A's Avatar
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    Re: B20A head To A20A3 block

    i have a feeling theres allready 10 threads about people wanting to do this and it not working/fitting/worth it

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    Re: B20A head To A20A3 block

    Quote Originally Posted by wohdog
    i have a feeling theres allready 10 threads about people wanting to do this and it not working/fitting/worth it
    i think there is more then 10 someone make it stop
    LX-R coming soon Here's a hint. 89mm stroke/ 41.60cc head /ARP head & main stud's /SRP piston's 81.5mm 9:5:1/Crower Rod's & more to come

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    3Geez Veteran MessyHonda's Avatar
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    Re: B20A head To A20A3 block

    can you get the b20a1 or is the the prelude engine? anways if it had lower end probs i would just rebuild it and drop it in.

    1989 Honda Accord LX-i
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    Re: B20A head To A20A3 block

    https://www.3geez.com/forum/showthread.php?t=47597
    read that until your eyes bleed

  7. #7
    LXi User coope's Avatar
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    Re: B20A head To A20A3 block

    not even posible just think DOHC SOHC think about the difference DOHC SOHC now repeat in your head again and again

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    Re: B20A head To A20A3 block

    Quote Originally Posted by coope
    not even posible just think DOHC SOHC think about the difference DOHC SOHC now repeat in your head again and again
    the h22/23 heads bolt on to the f22/23 blocks and are quite potent setups, especially for turbo. so it is possible, just not in the 3g.

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    3Geez Veteran A18A's Avatar
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    Re: B20A head To A20A3 block

    unlkess you pay someone $999999 to make a custom dohc head for the a20

  10. #10
    3Geez Veteran MessyHonda's Avatar
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    Re: B20A head To A20A3 block

    Quote Originally Posted by A18A
    unlkess you pay someone $999999 to make a custom dohc head for the a20


    lol i would just spend the money on a b18vtec and pay money for mounts and wiring.

    1989 Honda Accord LX-i
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  11. #11
    DX User dpax's Avatar
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    Re: B20A head To A20A3 block

    ok guys, thanks for slapping me to my senses........didn't realize there was a thread out there already...........gues I should stick to what I know ha=ow to do for mods and forget "short-cuts"....guess it isn't possible to pick up HP w/ any quickie changes.......scrap the DOHC add-on......didn't really want to get into a whole rebuild, but the B20A sounds like it might be a stout project,no?
    86 ACCORD LX
    (rebuilt engine (+0.020) 12/06)
    89 ACCORD LX-i
    (rebuilt engine 5/24/08)
    86 TOYOTA MR2
    (complete rebuild 9/02/09- (+0.50, Crower cams, TRD intake + exhaust))
    85 TOYOTA MR2
    87 TOYOTA MR2

    Love Those Japanese cars!

  12. #12
    DX User dpax's Avatar
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    Re: B20A head To A20A3 block

    ok guys, thanks for slapping me to my senses........didn't realize there was a thread out there already...........gues I should stick to what I know ha=ow to do for mods and forget "short-cuts"....guess it isn't possible to pick up HP w/ any quickie changes.......scrap the DOHC add-on......didn't really want to get into a whole rebuild, but the B20A sounds like it might be a stout project,no?
    86 ACCORD LX
    (rebuilt engine (+0.020) 12/06)
    89 ACCORD LX-i
    (rebuilt engine 5/24/08)
    86 TOYOTA MR2
    (complete rebuild 9/02/09- (+0.50, Crower cams, TRD intake + exhaust))
    85 TOYOTA MR2
    87 TOYOTA MR2

    Love Those Japanese cars!

  13. #13
    DX User dpax's Avatar
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    Re: B20A head To A20A3 block

    ok guys, thanks for slapping me to my senses.......didn't realize there was a thread about this out there.......somebody else must have had a brain fart, too......anyhow,scrap the DOHC swap.......didn't really want to get into a rebuild of the B20A, but I guess it's a stout little performer,no?
    86 ACCORD LX
    (rebuilt engine (+0.020) 12/06)
    89 ACCORD LX-i
    (rebuilt engine 5/24/08)
    86 TOYOTA MR2
    (complete rebuild 9/02/09- (+0.50, Crower cams, TRD intake + exhaust))
    85 TOYOTA MR2
    87 TOYOTA MR2

    Love Those Japanese cars!

  14. #14
    3Geez Veteran MessyHonda's Avatar
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    Re: B20A head To A20A3 block

    damn tripple post....lol....so yeah you didnt tell us what kind of b20 it was?

    1989 Honda Accord LX-i
    B18c1 swap since 7/2011
    175whp and 132tq
    Redzone tuned

  15. #15
    DX User dpax's Avatar
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    Re: B20A head To A20A3 block

    sory, must've had a trigger finger (shucks, didn't get credit anyhow) I believe
    it was a B20A3
    86 ACCORD LX
    (rebuilt engine (+0.020) 12/06)
    89 ACCORD LX-i
    (rebuilt engine 5/24/08)
    86 TOYOTA MR2
    (complete rebuild 9/02/09- (+0.50, Crower cams, TRD intake + exhaust))
    85 TOYOTA MR2
    87 TOYOTA MR2

    Love Those Japanese cars!

  16. #16
    3Geez Veteran MessyHonda's Avatar
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    Re: B20A head To A20A3 block

    Quote Originally Posted by dpax
    sory, must've had a trigger finger (shucks, didn't get credit anyhow) I believe
    it was a B20A3


    LOL did you know that is a SOHC head that came in the carbed 3rd gen ludes....lol

    1989 Honda Accord LX-i
    B18c1 swap since 7/2011
    175whp and 132tq
    Redzone tuned

  17. #17

    snoopyloopy's Avatar
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    Re: B20A head To A20A3 block

    Quote Originally Posted by MessyHonda
    LOL did you know that is a SOHC head that came in the carbed 3rd gen ludes....lol
    lmao

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