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Swapping H23 out of Automatic Si.........need a lil info

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Old Mar 4, 2005 | 05:31 PM
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Default Swapping H23 out of Automatic Si.........need a lil info

I was wondering how much should I look to spend on an assmebled shortblock and also could I use an an accord F22 block for it as well to just get the car running. Would it also matter if the car was automatic or standard?? Are those interchangeable?? Any help would be greatly appreciated............thx
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Old Mar 4, 2005 | 07:01 PM
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Default Re: Swapping H23 out of Automatic Si.........need a lil info (1weakSi)

All H23's are basically the same manual or auto and a used longblock can be had for about $500 unless you go through an engine importer then it's about $950. They will bolt in the same as any F22A or H22. The USDM '94-'97 F22Bx and '98-'02 F23A have different mounts but they can be swapped for earlier H22/H23/F22A mounts and it will be easy again.

Manual and Auto ECU's on the other hand are different and you should match them with whatever transmission you intend to run.

Flyrod
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Old Mar 14, 2005 | 08:05 AM
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Default Re: Swapping H23 out of Automatic Si.........need a lil info (flyrod)

Well we decided to go with an F22 shortblock out of the 90-93 Honda Accord, which mounts will we have to run and will there be enough clearance for the stock H23 Exhaust manifold?
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Old Mar 20, 2005 | 04:20 PM
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nobody???
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Old Mar 20, 2005 | 04:42 PM
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Default Re: (1weakSi)

im running stock h23 exhaust manni and down pipe on my f22/h23 hybrid and its a little close to the oil pan.... but it will bolt up...
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Old Mar 20, 2005 | 08:32 PM
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Default Re: (nslude)

interested too. bump
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Old Mar 31, 2005 | 12:07 PM
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No one yet?
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Old Mar 31, 2005 | 01:31 PM
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Default Re: Swapping H23 out of Automatic Si.........need a lil info (1weakSi)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1weakSi &raquo;</TD></TR><TR><TD CLASS="quote">Well we decided to go with an F22 shortblock out of the 90-93 Honda Accord, which mounts will we have to run and will there be enough clearance for the stock H23 Exhaust manifold?</TD></TR></TABLE>

you need to run the stock 4th gen prelude mounts, the accord mounts hold the motor a bit different

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Old Mar 31, 2005 | 03:01 PM
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So even the longblock would bolt up to the automatic tranny?
and also whut modifications would have to be made to use a F22 shortblock with an H23 head?
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