D16Y5 block with D16Y8 head?? - HondaCivicForum.com

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Old 09-20-2012, 05:43 PM
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Question D16Y5 block with D16Y8 head??

I didn't see anything in the forums about this specifically so i figured i'd just ask. has anyone in here swapped an EX head onto an HX block before? i've read (on another forum) that people have but the info was just a bit sketchy in terms of what will bolt right up and what needs to be changed. obviously the ecu has to be changed along with the intake manifold and primary o2 sensor but i'm at a loss beyond that.
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Old 09-21-2012, 06:41 AM
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Nothing else really need to be changed except for the ECU, and the head itself. Vtec wiring is already there.

You can probably leave the stock manifold on there, but I suggest getting EX fuel injectors since the stock HX injectors are 180cc (I think. double check first) and the stock EX injectors are 240cc. The ECU needs to have the correct injectors in order to run correctly. It just may be easier to get the EX manifold and avoid any hassles.
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