HF1-HF2

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Jun 17, 2007 | 08:50 AM

I-4

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From: Toronto, Ontario, Canada

HF1-HF2

What is the diff between HF1 and HF2. I found this stamp on the head just above the exaust manifold. Is HF2 USDM and HF1 JDM ? Orrr....eerrr... ?

Jun 17, 2007 | 11:47 AM

I-4

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From: Toronto, Ontario, Canada

Re: HF1-HF2 (I-4)

bump

Jun 18, 2007 | 05:41 PM

I-4

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Re: HF1-HF2 (I-4)

Anyone pls ?

Jun 18, 2007 | 06:46 PM

bluedlude

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From: upstate NY

Re: HF1-HF2 (I-4)

good luck getting an answer. ive asked the same question several times, but havent had any luck. my best guess is that HF-1 is from an H22A1 and HF-2 is from the H22A4? i dont know, but ive got a head with HF-2 on it, and no idea what year car it might have come from.