stock b18a1 bore? 81.5mm je pistons fit without boring?

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Sep 4, 2005 | 07:50 PM

slammedef06

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From: jefferson valley, ny, usa

stock b18a1 bore? 81.5mm je pistons fit without boring?

what mm pistons go in a b18a1, will 81.5mm fit or do you have to bore it out?

Sep 4, 2005 | 08:46 PM

doood

been there done that

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From: earth

Re: stock b18a1 bore? 81.5mm je pistons fit without boring? (slammedef06)

you will have to bore it .5

Mar 11, 2013 | 07:21 AM

egcoupekid

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Joined: Jan 2013

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From: Ohio

Re: stock b18a1 bore? 81.5mm je pistons fit without boring?

stock bore size is 81.00mm

Apr 8, 2013 | 08:09 PM

99civ

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Joined: Apr 2004

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From: Dayton, OH, USA

Re: stock b18a1 bore? 81.5mm je pistons fit without boring?

backwards question for future reference, can you run stock pistons if the block has been bored to 81.5?

Apr 8, 2013 | 08:15 PM

DeadlockRiff

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From: Hampton Roads, VA

Re: stock b18a1 bore? 81.5mm je pistons fit without boring?

Quote:

Originally Posted by 99civ

backwards question for future reference, can you run stock pistons if the block has been bored to 81.5?

No, you need to get the 81.5mm pistons for the 81.5mm block.

Apr 8, 2013 | 09:16 PM

99civ

Honda-Tech Member

Joined: Apr 2004

Posts: 335

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From: Dayton, OH, USA

Re: stock b18a1 bore? 81.5mm je pistons fit without boring?

Quote:

Originally Posted by DeadlockRiff

No, you need to get the 81.5mm pistons for the 81.5mm block.

Appreciate it.

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