Help... Can I use a 75mm head gasket on a 75.5mm bore?!

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07-31-2007, 01:12 PM

Jwbetley

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Help... Can I use a 75mm head gasket on a 75.5mm bore?!

The search button is down again... Question is simple. I had to have my block bored to 75.5mm. I already have a 75mm head gasket. I really need to know if I can use this or if anyone on here has done this. Thanks

-Justin

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07-31-2007, 03:07 PM

CerealKiller

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Re: Help... Can I use a 75mm head gasket on a 75.5mm bore?! (Jwbetley)

hell no you can't. you have to get a 75.5mm or 76.mm can't go lower then bore just a little over.

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07-31-2007, 03:38 PM

Jwbetley

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Re: Help... Can I use a 75mm head gasket on a 75.5mm bore?! (inlineaddict)

dahm... Not what I wanted to hear. Thanks

-Justin

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07-31-2007, 03:40 PM

lsvtechatch92

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Re: Help... Can I use a 75mm head gasket on a 75.5mm bore?! (Jwbetley)

yes you can...dont listen to him^^^^ if it is just .20 thousands you can no more then that though

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07-31-2007, 03:50 PM

CerealKiller

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Re: Help... Can I use a 75mm head gasket on a 75.5mm bore?! (Jwbetley)

quick ?
what type of block is it?

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07-31-2007, 03:55 PM

litovi3tboi503

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Re: Help... Can I use a 75mm head gasket on a 75.5mm bore?! (inlineaddict)

sounds like a D to me

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07-31-2007, 03:55 PM

Kyle R

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Re: Help... Can I use a 75mm head gasket on a 75.5mm bore?! (inlineaddict)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lsvtechatch92 »</TD></TR><TR><TD CLASS="quote">yes you can...dont listen to him^^^^ if it is just .20 thousands you can no more then that though</TD></TR></TABLE>

0.20 thousandths of what?

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07-31-2007, 03:58 PM

HiProfile

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Re: Help... Can I use a 75mm head gasket on a 75.5mm bore?! (inlineaddict)

If its a pre-96 block (D16Z6, A6), most of them have a .020" compression height, meaning that much space between the piston's top and the deck, so no issue with the piston hitting it. Since OEM mls HG's are slightly oversized anyways (mine measure 75.81mm), it won't be an issue for 75.5mm.

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07-31-2007, 04:01 PM

Kyle R

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Re: Help... Can I use a 75mm head gasket on a 75.5mm bore?! (HiProfile)

I was giving him a hard time.

His measurement didn't make any sense

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07-31-2007, 06:05 PM

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Jwbetley

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Re: Help... Can I use a 75mm head gasket on a 75.5mm bore?! (herecomesboost)

Ugh...

I just ordered a 75.5 mm gasket and I just listed my 75mm gasket on ebay. I guess I should have waited for more responses.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by inlineaddict »</TD></TR><TR><TD CLASS="quote">hell no you can't. you have to get a 75.5mm or 76.mm can't go lower then bore just a little over.</TD></TR></TABLE>

He seemed very positive in his response. Anyways, at least I ordered a cometic and now I know that I wont have any issues. Thanks

-Justin

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08-01-2007, 06:59 AM

#11

CerealKiller

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Re: Help... Can I use a 75mm head gasket on a 75.5mm bore?! (Jwbetley)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jwbetley »</TD></TR><TR><TD CLASS="quote">Ugh...

I just ordered a 75.5 mm gasket and I just listed my 75mm gasket on ebay. I guess I should have waited for more responses.

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

OH great, now I feel guilty for making you waste money.

If its a d16, then you were fine, running a 75.mm
I believe honda oem d16 gasket covers up to 76.mm.

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08-01-2007, 07:09 AM

#12

THEDirtyDseriesWOOT

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i run oem on mine 75.5 bore no probs here

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08-01-2007, 07:21 AM

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fast2camciv

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Re: Help... Can I use a 75mm head gasket on a 75.5mm bore?! (Jwbetley)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jwbetley »</TD></TR><TR><TD CLASS="quote"> Anyways, I ordered a cometic and now I know that I will have lots of head gasket problems...i should have stuck with OEM honda

-Justin</TD></TR></TABLE>
fixed it for ya

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08-01-2007, 07:37 AM

#14

ryan89crx

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Re: (THEDirtyDseriesWOOT)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by THEDirtyDseriesWOOT »</TD></TR><TR><TD CLASS="quote">i run oem on mine 75.5 bore no probs here

</TD></TR></TABLE>thats because OEM hgs are 75.5mm

did the OP even measure the opening in his "75mm" hg?

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08-01-2007, 08:40 AM

#15

agrn93ls

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Re: Help... Can I use a 75mm head gasket on a 75.5mm bore?! (inlineaddict)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by inlineaddict »</TD></TR><TR><TD CLASS="quote">quick ?
what type of block is it?</TD></TR></TABLE>

a little late to actually think about what you are saying

OP if its not to late go OEM gasket.

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08-01-2007, 09:01 AM

#16

Kyle R

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Re: Help... Can I use a 75mm head gasket on a 75.5mm bore?! (agrn93ls)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jwbetley »</TD></TR><TR><TD CLASS="quote"> Anyways, at least I ordered a cometic and now I know that I wont have any issues. Thanks

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

Looks like it's too late.

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08-02-2007, 04:26 PM

#17

fast93accord

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Re: Help... Can I use a 75mm head gasket on a 75.5mm bore?! (herecomesboost)

on my motor stock bore is 85mm. It is currently 85.5mm... I was told a stock headgasket will work.. I went through 2 of them before i realized it was gettting knicked by one piston.... Do yourself a favor and get a bigger headgasket so you dont have to pull the head over it...