boring engine for OEM oversized pistons....do I need a bigger Head gasket?
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I'm a Jackass
Joined: Jun 2003
Posts: 925
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From: stillwater, ok, us
boring engine for OEM oversized pistons....do I need a bigger Head gasket?
I'm getting my block bored for OS pistons, not sure if they're .020, .025, I don't know yet, btu will I need an 81.5 mm headgasket? can't I just use an 81 mm one?
Honda-Tech Member
Joined: Oct 2002
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From: So Cal
Re: boring engine for OEM oversized pistons....do I need a bigger Head gasket? (Slimm-rw-)
No! you don't need a bigger head gasket. The oem one is fine all the way up till 82mm. The oem honda b-series head gasket are actually 82 mm.
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Joined: Apr 2002
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From: oakland, ca, usa
Re: boring engine for OEM oversized pistons....do I need a bigger Head gasket? (dailydriven)
yeah, i have 81.25mm pr3's on a stock pr3 head gasket, fits fine.. however i removed the head once and notice that the black sealant around the inner gaskets were touching the pistons...no biggie though
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Joeski99Si
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Apr 22, 2009 09:57 PM
