difference in y5 head and y8 head
08-09-2003, 05:02 PM
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difference in y5 head and y8 head
I have an hx and wanted to do a swap to a y8, but what are the differences. I know the hx and ex have a 10 horse difference with different tranny's, ecu, etc. But I did not know the difference for the head. If anyone can please help me out on this one. Thanks
08-09-2003, 05:06 PM
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Re: difference in y5 head and y8 head (goulasos)
HX has roller rockers and two lobe cam (VTEC-e) the EX has a three lobe cam (VTEC). That is the only difference I am sure of. The ports may be slightly different. The valves are the same size.
08-09-2003, 05:10 PM
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Re: difference in y5 head and y8 head (goulasos)
you may want to look into spade's d series thread and the potential of the y5 head. It has those roller rockers which the y8 does not have and it has the potential to make big power.
08-09-2003, 09:27 PM
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Re: difference in y5 head and y8 head (goulasos)
Spade's D Series thread...
https://honda-tech.com/zerothread?id=335078
https://honda-tech.com/zerothread?id=335078
08-09-2003, 10:45 PM
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Re: difference in y5 head and y8 head (RyanCivic2000)
its a great thread 
Also check out the d series boards on http://www.ezboard.com
Also check out the d series boards on http://www.ezboard.com
08-09-2003, 10:48 PM
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hx head
the only bad thing about the HX is that it doesnt seem responsive to tuning for some reason...i was running I/H/E n some other stuff and was only pulling into the 16s with mine...
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08-10-2003, 11:29 AM
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Re: hx head (mastarolla)
Thanks guys for the information. I decided on keeping my hx head and put a y8 mani and tb (both bored) that I found for sale.
Thanks again guys
Thanks again guys
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