h23 with h22 head.... frankencar :-D - Honda Prelude Forum

tastyratz · 06-12-2002, 08:20 AM

hey. i have a h23 and was hearing that alot of people tried swapping just the head with a h22. how do you do this? are they sized different or is it a complicated procedure? does it just swap in or is there any changing of the block? do i lose my overall power curve by doing this? i know the h23 has a more rounded power curve throughout the rpms much better than a h22 but would i lose that by doing the swap? would i get better performance with just swapping the head? where can i get one? anyone know?

Machine Head · 06-12-2002, 08:39 AM

not trying to be rude at all but this topic has been covered, try doing a search and see what you come up with. I'll give you a hint, reliability has been a question, since the h23 block does not have the oil squirters the vtec requires

93si4ws · 06-12-2002, 11:09 AM

gimme a couple months i'll let you know how it goes

Bigshibs · 06-12-2002, 12:11 PM

I have read a lot on this and thier always seem to be a problem. One guy can't get his vtec to work, and its really hard do depend on it. And this isn't a weekend project, you need people who know what they are doing, money, and be willing to take chances.

slp mode · 06-12-2002, 11:36 PM

I am having problems with it right now.But I do know when you get them
ironed out,and it is done correctly.You will go from the 160 the h23 came with to appx.190 . The main thing is doing lots of research and taking it to someone you trust and that knows what they are doing.Yes I am having problems with my vtec but that can be fixed.It's all about research and development.You gotta start somewhere.

Forbidden · 06-13-2002, 08:26 AM

anybody got a dyno of a H23/H22 hybrid? I wonder if it has the torque the H23 has and what happens when VTEC kicks in

jpprelude · 06-13-2002, 03:37 PM

off of importreview.com

2.3 SI bottom end
2.2 VTEC head
Prelude Type S Pistons.
Everything else stock.
Stock headers, stock intake, stock exhaust
stock cam gears, stock fuel system
In other words, totally stock except S pistons.

Forbidden · 06-13-2002, 07:07 PM

nice

grlielude · 06-13-2002, 07:55 PM

I was thinking about doinga a frankenstein swap but it is more complicated than just switching the heads, do a search on it and read on.......

SiR-P12eLude · 06-13-2002, 09:10 PM

how much for just the vtec head... and how much for the whole swap...

slp mode · 06-13-2002, 11:41 PM

I paid 2000.00 for the complete swap.But it's back at the shop now
getting some things ironed out.

yellowh23a · 06-13-2002, 11:51 PM

Quote:

Originally posted by jpprelude

off of importreview.com

2.3 SI bottom end
2.2 VTEC head
Prelude Type S Pistons.
Everything else stock.
Stock headers, stock intake, stock exhaust
stock cam gears, stock fuel system
In other words, totally stock except S pistons.

How are they running type-s pistions in a 2.3L block? You sure it's not Prelude Type-S cams?

-Mike

Forbidden · 06-14-2002, 10:14 AM

I've always wondered that as well I though the wrist pin wasn't at the same place on the H22 and H23 pistons... I guess they're about the same then...

jpprelude · 06-14-2002, 05:02 PM

I just got that off of the website. I was a little baffled myself.

red92s · 06-14-2002, 10:28 PM

I've heard that the "right way" to do this project is to start with a complete H22 engine and head, and then use the H23 crank, rods, and pistons.

jpprelude · 06-14-2002, 11:28 PM

Quote:

Originally posted by red92s
I've heard that the "right way" to do this project is to start with a complete H22 engine and head, and then use the H23 crank, rods, and pistons.

I think that is what 93si4ws is doing. Or at least researching. Makes sense to me.

93si4ws · 06-15-2002, 03:02 AM

Quote:

Originally posted by jpprelude

I think that is what 93si4ws is doing. Or at least researching. Makes sense to me.

i have the 2.3 parts. just waiting for the wearable replacement parts to come in. then the complete reciprocating assy will be balanced and the building will begin.

v

angelcf · 05-04-2009, 07:12 PM

well i guess my question has been answered. LOL i think i might jsut stick to getting an H23 instead of swapping over to an H22. WOw crzyness.

dudefromaz · 05-04-2009, 07:23 PM

angelcf · 05-04-2009, 07:37 PM

need a new head, seems like a swap from an H23 to 22 will be too time consuming and difficult and rather costly but if anyone knows of anybody selling a an H23, PM me please.
thanks.