JDM head and USDM head

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Mar 12, 2004 | 12:55 PM

Built2.0Lude

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Joined: Aug 2003

Posts: 140

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From: White Bear, MN, U.S.

JDM head and USDM head

Just curious to know if both the heads are the same for a H22. Plus, where do the jdm engines get their more compression from? (gasket? pistons?)

Mar 12, 2004 | 01:20 PM

Riptide101

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Joined: May 2001

Posts: 311

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Re: JDM head and USDM head (Vtec96Lude)

Compression on the JDM ones are 10.6:1 as opposed to the USDM ones that are 10:1.

Raise in compression is due to the pistons.

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