stiffdogg06

Ok I can't seem to find a 100% agreement on this issue. I have searched high and low.

I am currently building a new y8 motor, well every crank that I have has a spun bearing and are too bad to fix at the machine shop. Over sized bearings won't even work.

So my question is, will a z6 crank fit into a y8 bottom end with no problem or what kind of things will be needed to run a z6 crank in a y8 bottom?

Thanks guys for the help!

stiffdogg06

Also, a question. Would a Y7 crank work in a Y8 bottom end?

stiffdogg06

anyone

beastsohc

i need to no the same thing...

stiffdogg06

I crossed referenced every crankshaft from 2000-1996.

2000-1999 have the part # of 18383
1998-1996 have the part # of 18393

I did this for Dx, Hx, Lx, Ex, Cx. All 4drs, 3drs, 2drs. And only did it for 5 speeds.

The 1992-1995 crankshafts have a totally different part # so I assume by that, they are totally different which is what I have been told. But I like to confirm my findings.

SovXietday

I know that they Y8 cranks have different sized oil galleys and small things of that nature. However, running them in the Y8 block should be possible as far as I know.

justinCO

I am running a z6 crank in my y8 block, it works fine.

Justin

HiProfile

They are the same when it comes to bearings and exterior dimensions, but its the oiling issues that are the problem. Most of the 96+ cranks I've seen had smaller holes, as well as were not cross-drilled. Thats a big issue if you run it 'loose', since only one side is getting the oil. Its not the worst thing for the grooved mains, but for flat rod bearings - the proof is in the pudding. You have a 10x higher chance of spinning a rod bearing in a 96+ motor than a pre-96 because of that.

stiffdogg06

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by justinCO &raquo;</TD></TR><TR><TD CLASS="quote">I am running a z6 crank in my y8 block, it works fine.

Justin</TD></TR></TABLE>

Are you really?!

ninesecrx

Same stroke and journal sizes on all the 1.6 cranks

stiffdogg06

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ninesecrx &raquo;</TD></TR><TR><TD CLASS="quote">Same stroke and journal sizes on all the 1.6 cranks </TD></TR></TABLE>

Awesome thank you so much guys. I can finally get this build finished. Been looking high and low for a y8 crank and couldnt find one without a spun bearing. Now I can use a z6.

stiffdogg06

If I were to put a z6 crank in my y8 block. What would I need to change/modify? If you do not know for sure, then don't post. I need absolute facts possibly from someone who runs that set up.

justinCO

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stiffdogg06 &raquo;</TD></TR><TR><TD CLASS="quote">If I were to put a z6 crank in my y8 block. What would I need to change/modify? If you do not know for sure, then don't post. I need absolute facts possibly from someone who runs that set up.</TD></TR></TABLE>

Just like I told you in PM when you asked, you don't need to change/modify anything. This is assuming you already have everything else y8.

My setup, that is running fine, is a z6 crank, y8 block, z6 head/dizzy, and everything else is y7/y8 (oil pump, starter, alternator, IM, etc).

If you have a specific question to what will/won't work I can try to tell you based on my personal experience. Like for example, you cannot use a z6 crank pulley with the z6 crank in a y8 block setup, the alt' belt won't line up right, you need the y8 crank pulley. Etc..

The cranks for z6/y8 are the same part #'s if you look them up on hondaautomotiveparts.com too...

Justin

stiffdogg06

I just want to make sure I don't have to cut/shim, buy new parts to make the z6 fit in the y8 block. And this is such important part I don't want to get screwed with it.


Modified by stiffdogg06 at 9:47 PM 7/9/2008

justinCO

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stiffdogg06 &raquo;</TD></TR><TR><TD CLASS="quote">I just want to make sure I don't have to cut/shim, buy new parts to make the z6 fit in the y8 block. And this is such important part I don't want to get screwed with it.

Modified by stiffdogg06 at 9:47 PM 7/9/2008</TD></TR></TABLE>

Well I have told you more then once you do not need to, I am using that exact setup, and it was put together by a shop that knows what they are doing. Not to mention the others in this thread that have confirmed it as well.

If you're still skeptical, then well you just have to do it yourself and see how it works out.

Justin

stiffdogg06

Only reason why I am little skeptical is because of a reputable guy on td16.com that said:


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote"> the snout on the crank is larger with one of them. i can't remember which is larger, but i know there is a difference where the pulley and sprocket go on.</TD></TR></TABLE>

I just like things to be easy as possible, so I always like to make sure I won't need to keep buying things to just get one crank to fit.

But I appreciate all the great info you have given me Justin. I am basically basing off if I buy a z6 crank on what you say. LoL

justinCO

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stiffdogg06 &raquo;</TD></TR><TR><TD CLASS="quote">the snout on the crank is larger with one of them. i can't remember which is larger, but i know there is a difference where the pulley and sprocket go on.</TD></TR></TABLE>

Larger how? 'Cause I had a z6 crank pulley bolted onto my crank first, and it bolts up fine (obviously), the alternator belt just doesn't line up (it was borderline sliding off when car was idle'ing). We then put on a y8 crank pulley and it aligned correctly.

We also used a y8 sprocket (one w/ ckf "gears" on it) on the z6 crank.

Where you did your part #'s from earlier too? I looked up a '96 EX (d16y8) and a '95 EX (d16z6) and the crankshaft set part #'s are the same:
'95 2DR EX 5MT: 18393 010 1 CRANKSHAFT SET
'96 2DR EX 5MT: 18393 017 1 CRANKSHAFT SET

I don't know what else to say, there are the same and should work perfectly fine. Unless somehow the blown z6 engine I got did not really have a z6 crank in it when I took the crank

edit: I was sweating this same issue when I had my engine built too. But I did all the research back then as well, and the new engine now has over 800 miles on it with no problems. So, something is working right :D

Justin

stiffdogg06

Thanks man for the great info. Sorry I just want to get this right before i go spending $ on buying z6 cranks.

Just surprised so many people have said "oh no they're not interchangeable because of this and this." And then you with first hand experiment say NOTHING AT ALL needs changed.

I really do appreciate your help. So this z6 crank should be a direct drop in?