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Old 06-01-2008, 11:06 PM   #1
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can you put a VX head onto a y7 block for better FE?

how would this swap do? a vx head on a y7 block? im guessing you'd have to use the vx ecu too?


also, would you have to change the wiring harness?
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Old 06-02-2008, 08:51 AM   #2
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no im pretty sure its a simple bolt up, the only thing that would change is the ecu. i've been thinking of doing the D15B VTEC-E head swap on my D16Z6 but no one wants to ship me just the head and the ecu. they want me to buy the whole motor!
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Old 06-02-2008, 11:04 AM   #3
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no im pretty sure its a simple bolt up, the only thing that would change is the ecu. i've been thinking of doing the D15B VTEC-E head swap on my D16Z6 but no one wants to ship me just the head and the ecu. they want me to buy the whole motor!
have you looked for a rebuilt head from online shops? im not sure what the code for the vx head is? >> what would that be vx owners??

also what is the vx ecu part number as well?
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Old 06-02-2008, 07:28 PM   #4
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I'm not 100% on this and have no personal experience here, so I could be off, but just make sure you check what the final compression ratio would be. I know that if I swapped the VX head on to my d15, the compression would go up to around 12:1, or so I've been told.
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Old 06-02-2008, 08:29 PM   #5
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I'm pretty sure you would need to replace the pistons since the VX has dished pistons and tiny combustion chambers. I think it is the only D series that does.
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Old 06-03-2008, 04:28 AM   #6
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Also keep in mind that the increased stroke of the 1.6 liter bottom end will increase compression above and beyond the increase you would expect from the pistons alone.
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Old 06-03-2008, 09:22 AM   #7
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have you looked for a rebuilt head from online shops? im not sure what the code for the vx head is? >> what would that be vx owners??

also what is the vx ecu part number as well?
no i haven't and i have no clue. everyone keeps telling me to just use my ecu and reburn the program in there. i think i could probably do that and save a little money there. but as far as the vx head.... i have no clue..... lol!
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Old 06-03-2008, 09:35 AM   #8
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You would need the VX pistons also.
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