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h23a1 with h22 head

 
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Old 05-07-2010, 12:52 AM
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h23a1 with h22 head

i was wondering what the pros and cons to doing an h23 with an h22 head on it. i was kicking around doing it but i heard the bottom ends go and i was wondering what caused it and whether it would be worth trying on my 92 si
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Old 05-07-2010, 01:44 AM
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Re: h23a1 with h22 head

the engine will not be the same as an h22, you will not be able to rev as high to take advantage of vtec. The bottom end will prob not last very long because it will be having alot more abuse in the higher rpm's witch it will not be ready for. But if this swap is done correctly you will be able to enjoy it. Many people forget that the non vtec engine's for honda can only generally handle about 7,000 rpm shift any more than that the rod bolts will start to stretch/loosen and cause bearing premature failure so if you do want to go past 7,000 rpm shifts to take advantage of the h22 head get arp rod bolts. don't beat on it because you will have to re tighten them again one final time after break in then you can have fun. putting in fresh rod bearing's with the swap and properly breaking them in won't hurt either, they are less than 100 and can be put in without removing the engine. those are just extra thing's people usually don't do that will save you in the long run.
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Old 05-07-2010, 01:05 PM
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Re: h23a1 with h22 head

okay sweet thanks. but after i do all that do you think its worth it?
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Old 05-07-2010, 01:06 PM
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Re: h23a1 with h22 head

weird. I revved my h23vtec to 8500 and it stayed together for 30-35k miles. My only problem was i used bearing clearances that were too tight for the revving i was looking to do.
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Old 05-07-2010, 01:08 PM
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Re: h23a1 with h22 head

im just tryin to get a feel for it. my motors only got 130 in it byt i want more power. i was going to do the rings then put the head on but didnt know if it was worth it. plus i still need to find a head
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Old 05-07-2010, 01:26 PM
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Re: h23a1 with h22 head

Im accually thinkin of doin the same, glad i read this thread, i aint kno... I think it wud be safer and better to jus get the whole h22 vtec swap tho.
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Old 05-07-2010, 03:46 PM
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Re: h23a1 with h22 head

If you want it to be reliable then just take the extra steps to make it that way or just get an h22 and sell your old engine and you will spend around the same amount as a head swap. I live in ny and there's always a h22 for sale on craigslist every other week. If you wait it out you can pick one up for 700. There's a kid that lives down the street from me that picked up a semi built h22 long block for 300 lucky.

98vtec- not everyone get's that lucky, i def didn't. Did you put new bearing's in when you did the head swap because that might add to the luck, i used the same ones and that was a big mistake i should have replaced them and put arp rod bolt's in.
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Old 05-07-2010, 06:31 PM
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Re: h23a1 with h22 head

Quote:
weird. I revved my h23vtec to 8500 and it stayed together for 30-35k miles. My only problem was i used bearing clearances that were too tight for the revving i was looking to do.
^^Brag much bro? lol

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98vtec- not everyone get's that lucky,
That's not luck dude. Blake has done his homework (probably more so than anyone else on this site). Read his build thread and you'll see.
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Old 05-08-2010, 12:28 AM
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Re: h23a1 with h22 head

I've got the G22 motor (F22A1 block w/H22A4 head) and I rev to 75 all day. Haven't taken it over that but I'm pretty sure it'll prolly go closer to 8 bc my bottom end is completely rebuilt. Just do ur homework n do it right. The 1st time. The skys the limit.
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