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Old 05-15-2018, 03:11 PM   #1 (permalink)
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engine block interchange

I am unable to source a D15z1 complete engine, but I have found a head with intake exhaust So I was wondering what blocks I could purchase that are more common that would yield the same MPG. I was looking at the JDM D15B Vtec(not the 3 stage one). What other engine blocks would work and get the same MPG and would any JDM ones work. If i have to make some changes besides just using the d15z1 head let me know please.

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Old 05-15-2018, 03:46 PM   #2 (permalink)
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Quote:
Originally Posted by xChoter View Post
I am unable to source a D15z1 complete engine, but I have found a head with intake exhaust So I was wondering what blocks I could purchase that are more common that would yield the same MPG. I was looking at the JDM D15B Vtec(not the 3 stage one). What other engine blocks would work and get the same MPG and would any JDM ones work. If i have to make some changes besides just using the d15z1 head let me know please.
You would probably be better served if you ask this question on d-series.org or honda-tech.com. Maybe someone here on EM will chime in with knowledge, but I personally have never done such a swap. Check out this honda-tech thread: https://honda-tech.com/forums/honda-...block-2255038/

Deck height and piston type matter, obviously. A proper timing belt selection could be tricky, too, depending on which block you select.

Here is a guy with d15z1 head on a d16y7 block: ...as you can see, it ran for four seconds at least!
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.



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Old 05-15-2018, 09:56 PM   #3 (permalink)
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thank you

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