H22 head Swap!!!
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H22 head Swap!!! - 6/8/2007 12:12:52 PM
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KevinAccord
Posts: 1012
Joined: 4/30/2007
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Hi. I was reading some posts and read about some H22 head swapping and i wanted to know what would i need for this change and how it's done and how difficult is it....which f23 part will i keep? also what are the benefits of this and if I would be able to add some extra boost to my soon to be turbo accord. Thanxs guys for ur help!
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2000 Accord LX i4 Turbo AT
18" Konig Unknown Rims
MSD 6AL
Gold Line Suspension
Apexi Neo
Few other Mods...
Mini Cooper 2006 MT
HID's
17" Rims
Premium Package
Sport Suspension
Short Shifter
Panoramic Sunroof
Stock Engine (For
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RE: H22 head Swap!!! - 6/8/2007 7:55:25 PM
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pyaarawala
Posts: 413
Joined: 5/19/2007
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Some basic benefits to the H22 head swap is that you upgrade your accord to a DOHC. Since you have the extra cam you have extra exhaust valves, so you'd probably need to change your header. The H22 has better compression ratios and all that complicated stuff as well. In general, it's just a much better head than the F23. Also, while your at it, you might as well change your piston rings too while your engine is taken apart. If the shop offers it, you can mild the motor as well.
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1998 Honda Accord EX Coupe 4cyl AT
basic bolt-ons, dropped, several show mods.
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RE: H22 head Swap!!! - 6/8/2007 10:05:52 PM
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Shadow1992
Posts: 332
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First off...both the f23 and h22 are 16 valve. they have the same number of exhaust and intake valves. With the DOHC of the h22 the intake and exhaust vavles use different cams so there is more tuning ability. Second the exhaust header is attached to the block..not the head, so you would not have to change that.
Third the compression ratio is mostly a factor of the different pistons on the h22 and f23. ALthough the combustion space is slightly different, it is only very minor. We're talking like .2 compression difference.
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1992 Accord EX
massively modifed H22A
2.5L stroker kit
GT35R turbo @ 24psi
459 whp
404 ft-lbs torque
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RE: H22 head Swap!!! - 6/9/2007 12:21:38 AM
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00AccordLX5spd
Posts: 3815
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Wouldn't it be more cost-effective to just swap an entire H22 instead of just the heads?
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2000 Accord LX Sedan F23A1 5spd
-Short Shift Adapter
-eBay SRI w/ K&N
1995 Accord V6 Sedan AT - AKA "the money pit"
1991 Mustang LX 5.0 Convertible - my daily driver all through college - now sits in my dad''s garage - needs a little TLC
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RE: H22 head Swap!!! - 6/9/2007 11:30:27 AM
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sir_nasty
Posts: 6309
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You beat me to it.... Headers or the exhaust manifold are attached directly to the head..... If you do it let us know what you think of it... anyone priced out a H22 head yet just to see what kind of costs are involved and what kind of gains to expect?
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1981 Civic Station Wagon - ROhnda (Really Old Honda)
1981 Honda CB650 Motorcylce - WHEE What More can I say?
2000 Lexus RX 300 - Oooh baby my wife let me drive it once!!
Quote: Life''''s great but it''''s not all beer and skittles
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RE: H22 head Swap!!! - 6/9/2007 6:25:12 PM
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marbro
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yeah, ebay can be hit and miss, this is the point where you start scoping out junk yards for preludes, and junkyards that track what they get in are the rare gem.
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98' Accord project car/ Daily driver
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RE: H22 head Swap!!! - 6/10/2007 10:27:38 AM
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KevinAccord
Posts: 1012
Joined: 4/30/2007
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so any of u guys recommend this kind of swap? besides, i hav to change the manifold, which i already bought for $250 and im not planning on changing it...i don't have that much $!!!!!!!!
_____________________________
2000 Accord LX i4 Turbo AT
18" Konig Unknown Rims
MSD 6AL
Gold Line Suspension
Apexi Neo
Few other Mods...
Mini Cooper 2006 MT
HID's
17" Rims
Premium Package
Sport Suspension
Short Shifter
Panoramic Sunroof
Stock Engine (For
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RE: H22 head Swap!!! - 6/10/2007 6:43:45 PM
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pyaarawala
Posts: 413
Joined: 5/19/2007
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You got a header for $250? What kind? I got my OBX for $160 shipped and I also want to do the H22 Head swap. I don't want to have to change the header though but looks like I will have to. If only my car was a stick, I would go all out on it. The auto is the only thing holding me back, lol.
_____________________________
1998 Honda Accord EX Coupe 4cyl AT
basic bolt-ons, dropped, several show mods.
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RE: H22 head Swap!!! - 6/11/2007 10:51:06 AM
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KevinAccord
Posts: 1012
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it's a turbo manifold actually... and the shipping for PR is very expensive....besides, it cost me more than that, because they sent the wrong one and i had topay shipping double so i could get the right one! 250+60... don't let thefact that it's an auto hold u back!
_____________________________
2000 Accord LX i4 Turbo AT
18" Konig Unknown Rims
MSD 6AL
Gold Line Suspension
Apexi Neo
Few other Mods...
Mini Cooper 2006 MT
HID's
17" Rims
Premium Package
Sport Suspension
Short Shifter
Panoramic Sunroof
Stock Engine (For
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RE: H22 head Swap!!! - 6/11/2007 12:15:34 PM
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pyaarawala
Posts: 413
Joined: 5/19/2007
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I just spoke with my cousin about the H22 Swap, and he says one thing, to make sure that I know what I'm getting myself into before I do it. The two cons he stated for the swap are:
1) It's going to cost a lot (Maybe a G or so, less if you find a deal)
2) Your car loses its reliability.
Now #2 is what I'm more worried about over #1. I mean there's a reason why automobile engineers get paid 100K to design these engines. He said that an H22 head, although it fits on the F23 block, and it will work, it becomes very unreliable and the estimated life of the engine decreases. He even told me a story of a guy he knew who owned a Civic, swapped out his engine head, block, and trany, to an ls block, gsr head, and gsr trany (integra). After a while, his valves blew and he had to replace the head. Now I don't want something like that happening to my car, it'll cost a fortune to fix.
Does the car really become THAT unreliable when you swap out an entire engine or just the head?
_____________________________
1998 Honda Accord EX Coupe 4cyl AT
basic bolt-ons, dropped, several show mods.
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