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Old 05-21-2010, 05:19 AM
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NEW Member + H22A1 Header Question

Hello PZ!

I'm new to this "forum" game, so I'll try not to be so newbie-ish.
I currently own a '92 Honda Prelude with a USDM H22A1 engine from a '96 'Lude.
I had the swap because one night while driving home from a party, my F22 engine just crapped out on me.
Later, I found out that my valves were bent, so I needed a new engine.
I set my eyes on the next best option to being affordable, street legal, and quick.. An USDM H22
I love the power, and it's enough for me to just ride.
The only upgrades I did was an unknown eBay header and intake, and a Megan exhaust.
Considering on getting new shocks w/ lowering springs sometime soon.

Enough about me.. On to question on my criteria.
(Beforehand, I did a full search about it, but no luck..)

I need to get my car smogged, and thet engine NEVER came with a stock header, so I bought an eBay header.
It passed emssions, but not the visual.
I found a header for sale, but it's from a '97-'01 H22 Prelude.
My questions are, will it fit in my engine?
What's the difference between both engine concerning the exhaust manifold?

Feedback would be greatly appreciated!
Thanks for your time!
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Old 05-21-2010, 11:35 AM
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Re: NEW Member + H22A1 Header Question

i dont think USDM made an h22a1 engine, you probably have a JDM
I have a usdm h22a4, from a 98 prelude.
to make it short, na, the 97-01 headers wont fit on the 4th gen as far as I know. because usdm and jdm are slightly different.
welcome to PZ ! :D
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Old 05-21-2010, 12:05 PM
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Re: NEW Member + H22A1 Header Question

I'll have to disagree with that.. although I have an h22a, I got this pic from prelude3g.com..... which shows an h22a1... I think you will be alright in the size of the headers... I've never heard of any size differences of the headers, or exhaust manifolds.., between the different h22 motors...., but I don't have any proof either... the only differences that I know for sure, is that a supercharger won't fit on any pre 97' h22 motors.., without some modification...... can somone confirm this...?

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Old 05-21-2010, 12:14 PM
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Re: NEW Member + H22A1 Header Question

Yes, the 97-01 header will fit your h22a1 engine and will bolt right up with your exhaust.

Quote:
Originally Posted by Floww View Post
i dont think USDM made an h22a1 engine, you probably have a JDM
I have a usdm h22a4, from a 98 prelude.
to make it short, na, the 97-01 headers wont fit on the 4th gen as far as I know. because usdm and jdm are slightly different.
welcome to PZ ! :D
An h22a1 came in the usdm 4th gen Preludes.

An h22a4 came in the usdm 5th gen Preludes.

And also usdm and jdm motors are slightly different but not when it comes to the header. Please make sure what you tell someone is correct before just saying things....
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Old 05-21-2010, 12:30 PM
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Re: NEW Member + H22A1 Header Question

well, just thought, since jdm and usdm are different ._. i'm still nub, still learning ._.
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Old 05-21-2010, 12:32 PM
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Re: NEW Member + H22A1 Header Question

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Originally Posted by Floww View Post
well, just thought, since jdm and usdm are different ._. i'm still nub, still learning ._.
I understand that you are still learning but please do not just tell someone something if you are not 100% on your answer. We don't want to give out false information here. Thanks for trying to help though.
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Old 05-21-2010, 03:43 PM
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Re: NEW Member + H22A1 Header Question

yeah the headers will fit, just fine..
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Old 05-21-2010, 08:20 PM
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Re: NEW Member + H22A1 Header Question

Quote:
Originally Posted by Floww View Post
i dont think USDM made an h22a1 engine, you probably have a JDM
I have a usdm h22a4, from a 98 prelude.
to make it short, na, the 97-01 headers wont fit on the 4th gen as far as I know. because usdm and jdm are slightly different.
welcome to PZ ! :D
Thank you for the welcome!

Quote:
Originally Posted by ben_deez View Post
I'll have to disagree with that.. although I have an h22a, I got this pic from prelude3g.com..... which shows an h22a1... I think you will be alright in the size of the headers... I've never heard of any size differences of the headers, or exhaust manifolds.., between the different h22 motors...., but I don't have any proof either... the only differences that I know for sure, is that a supercharger won't fit on any pre 97' h22 motors.., without some modification...... can somone confirm this...?

Thanks for the image! Great info.

Quote:
Originally Posted by BB2H22A4 View Post
Yes, the 97-01 header will fit your h22a1 engine and will bolt right up with your exhaust.



An h22a1 came in the usdm 4th gen Preludes.

An h22a4 came in the usdm 5th gen Preludes.

And also usdm and jdm motors are slightly different but not when it comes to the header. Please make sure what you tell someone is correct before just saying things....
I got my answer. I wouldn't doubt you
And thank you for correcting Floww on his false information.
Loving the Stigg picture. One of my favorite drivers.

Last edited by shortPRELUDE; 05-21-2010 at 10:50 PM.
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Old 05-21-2010, 08:30 PM
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Re: NEW Member + H22A1 Header Question

I just contacted the seller about the part. All I need is to wait for a response. I'll be sure to keep you guys updated :D. Thank you again for the help guys.

Also, I will be posting pictures soon on the "Official 4th gen picture post!!!" thread, soon after I get the car smogged and detailed.
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Old 05-21-2010, 10:38 PM
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Re: NEW Member + H22A1 Header Question

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Originally Posted by Bluepreludedude View Post
yeah the headers will fit, just fine..
Thanks!
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Old 05-22-2010, 02:44 AM
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Re: NEW Member + H22A1 Header Question

yea theyll fit. way easyer if you install them as two pieces meaning do the top first then get under your car an connect the bottom half.
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Old 05-23-2010, 03:26 AM
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Re: NEW Member + H22A1 Header Question

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Originally Posted by abelsgotspeed View Post
yea theyll fit. way easyer if you install them as two pieces meaning do the top first then get under your car an connect the bottom half.
Thanks for the tip :]. I'll be sure to do that.
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