Any benefit to throwing a JDM D15B head on a D16y8 block?
04-30-2005, 04:18 PM
#1
Honda-Tech Member
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Any benefit to throwing a JDM D15B head on a D16y8 block?
I have a broken D15b and was talking with my friend about his Y8 motor. I know the D15b has a hotter cam in it. Would compression be raised by using the D15b head? I know nothing of SOHC motors so any help or direction is appreciated. I thought there was a head/block comaprison around somewhere, can't see to find it. We're doing an auto-manual swap and throwing all my single cam parts on his Y8, so we're trying to maximize his sohc power with some OEM parts.
Thanks.
Thanks.
05-02-2005, 03:15 PM
#3
Re: Any benefit to throwing a JDM D15B head on a D16y8 block? (NirVTECn2o)
Depending on your headgasket, compression will drop from about 9.5:1 (y8 block and head) to about 8.5:1 (y8 block, d15b head).
No combination of any d-series block and head will yield higher compression than what the y8 longblock comes with, about 9.6:1.
No combination of any d-series block and head will yield higher compression than what the y8 longblock comes with, about 9.6:1.
05-02-2005, 03:59 PM
#4
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Re: Any benefit to throwing a JDM D15B head on a D16y8 block? (JRciv)
Hmmmm, sounds good for Boost, and it doesn't get much worse for all motor. I guess the cam with new valvetrain and thinner HG is where we will stop.
05-03-2005, 02:28 AM
#5
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Re: Any benefit to throwing a JDM D15B head on a D16y8 block? (JRciv)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JRciv »</TD></TR><TR><TD CLASS="quote">Depending on your headgasket, compression will drop from about 9.5:1 (y8 block and head) to about 8.5:1 (y8 block, d15b head).
No combination of any d-series block and head will yield higher compression than what the y8 longblock comes with, about 9.6:1.</TD></TR></TABLE>
A6 block with a z6 head makes compression 9.9:1
No combination of any d-series block and head will yield higher compression than what the y8 longblock comes with, about 9.6:1.</TD></TR></TABLE>
A6 block with a z6 head makes compression 9.9:1
05-03-2005, 01:54 PM
#6
Re: Any benefit to throwing a JDM D15B head on a D16y8 block? (1TurboHatch)
Oh yeah. Sometimes I forget about the D16A series. It's kind of a weird motor.
Anyway, just use this link to figure all this **** out:
http://www.knology.net/~jediklc/D.htm
Anyway, just use this link to figure all this **** out:
http://www.knology.net/~jediklc/D.htm
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straightshot08
Honda Civic / Del Sol (1992 - 2000)
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cevinklark
All Motor / Naturally Aspirated
7
12-31-2005 07:32 AM
a6, block, blockd15b, combination, compression, d15, d15b, d16y8, fit, gasket, head, jdm, performance, y8, z6
